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156157 is a prime number
BaseRepresentation
bin100110000111111101
321221012121
4212013331
514444112
63202541
71220161
oct460775
9257177
10156157
11a7361
1276451
1356101
1440ca1
1531407
hex261fd

156157 has 2 divisors, whose sum is σ = 156158. Its totient is φ = 156156.

The previous prime is 156151. The next prime is 156217. The reversal of 156157 is 751651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133956 + 22201 = 366^2 + 149^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-156157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78078 + 78079.

It is an arithmetic number, because the mean of its divisors is an integer number (78079).

2156157 is an apocalyptic number.

It is an amenable number.

156157 is a deficient number, since it is larger than the sum of its proper divisors (1).

156157 is an equidigital number, since it uses as much as digits as its factorization.

156157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1050, while the sum is 25.

The square root of 156157 is about 395.1670532825. The cubic root of 156157 is about 53.8501791339.

It can be divided in two parts, 156 and 157, that added together give a palindrome (313).

The spelling of 156157 in words is "one hundred fifty-six thousand, one hundred fifty-seven".