157234277 has 2 divisors, whose sum is σ = 157234278. Its totient is φ = 157234276.

The previous prime is 157234267. The next prime is 157234283. The reversal of 157234277 is 772432751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144624676 + 12609601 = 12026^2 + 3551^2 .

It is a cyclic number.

It is not a de Polignac number, because 157234277 - 2⁴ = 157234261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157234277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157234237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78617138 + 78617139.

It is an arithmetic number, because the mean of its divisors is an integer number (78617139).

Almost surely, 2^157234277 is an apocalyptic number.

It is an amenable number.

157234277 is a deficient number, since it is larger than the sum of its proper divisors (1).

157234277 is an equidigital number, since it uses as much as digits as its factorization.

157234277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82320, while the sum is 38.

The square root of 157234277 is about 12539.3092712478. The cubic root of 157234277 is about 539.7372716000.

The spelling of 157234277 in words is "one hundred fifty-seven million, two hundred thirty-four thousand, two hundred seventy-seven".