157655473 has 2 divisors, whose sum is σ = 157655474. Its totient is φ = 157655472.

The previous prime is 157655471. The next prime is 157655479. The reversal of 157655473 is 374556751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103897249 + 53758224 = 10193^2 + 7332^2 .

It is a cyclic number.

It is not a de Polignac number, because 157655473 - 2¹ = 157655471 is a prime.

Together with 157655471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (157655471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78827736 + 78827737.

It is an arithmetic number, because the mean of its divisors is an integer number (78827737).

Almost surely, 2^157655473 is an apocalyptic number.

It is an amenable number.

157655473 is a deficient number, since it is larger than the sum of its proper divisors (1).

157655473 is an equidigital number, since it uses as much as digits as its factorization.

157655473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 441000, while the sum is 43.

The square root of 157655473 is about 12556.0930627325. The cubic root of 157655473 is about 540.2187876581.

The spelling of 157655473 in words is "one hundred fifty-seven million, six hundred fifty-five thousand, four hundred seventy-three".