144961357 has 2 divisors, whose sum is σ = 144961358. Its totient is φ = 144961356.

The previous prime is 144961337. The next prime is 144961381. The reversal of 144961357 is 753169441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90364036 + 54597321 = 9506^2 + 7389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144961357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144961337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72480678 + 72480679.

It is an arithmetic number, because the mean of its divisors is an integer number (72480679).

Almost surely, 2^144961357 is an apocalyptic number.

It is an amenable number.

144961357 is a deficient number, since it is larger than the sum of its proper divisors (1).

144961357 is an equidigital number, since it uses as much as digits as its factorization.

144961357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 144961357 is about 12039.9899086336. The cubic root of 144961357 is about 525.3121131266.

The spelling of 144961357 in words is "one hundred forty-four million, nine hundred sixty-one thousand, three hundred fifty-seven".