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144120157 is a prime number
BaseRepresentation
bin10001001011100…
…01100101011101
3101001012001200121
420211301211131
5243343321112
622144554541
73400000246
oct1045614535
9331161617
10144120157
1174396675
1240322a51
1323b207cc
14151d7ccd
15c9bc407
hex897195d

144120157 has 2 divisors, whose sum is σ = 144120158. Its totient is φ = 144120156.

The previous prime is 144120089. The next prime is 144120173. The reversal of 144120157 is 751021441.

144120157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138039001 + 6081156 = 11749^2 + 2466^2 .

It is an emirp because it is prime and its reverse (751021441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144120157 - 27 = 144120029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144121157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72060078 + 72060079.

It is an arithmetic number, because the mean of its divisors is an integer number (72060079).

Almost surely, 2144120157 is an apocalyptic number.

It is an amenable number.

144120157 is a deficient number, since it is larger than the sum of its proper divisors (1).

144120157 is an equidigital number, since it uses as much as digits as its factorization.

144120157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 144120157 is about 12005.0054977080. The cubic root of 144120157 is about 524.2940255443.

Adding to 144120157 its reverse (751021441), we get a palindrome (895141598).

The spelling of 144120157 in words is "one hundred forty-four million, one hundred twenty thousand, one hundred fifty-seven".