157023571 has 2 divisors, whose sum is σ = 157023572. Its totient is φ = 157023570.

The previous prime is 157023533. The next prime is 157023617. The reversal of 157023571 is 175320751.

It is a weak prime.

It is an emirp because it is prime and its reverse (175320751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157023571 - 2⁹ = 157023059 is a prime.

It is not a weakly prime, because it can be changed into another prime (157029571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78511785 + 78511786.

It is an arithmetic number, because the mean of its divisors is an integer number (78511786).

Almost surely, 2^157023571 is an apocalyptic number.

157023571 is a deficient number, since it is larger than the sum of its proper divisors (1).

157023571 is an equidigital number, since it uses as much as digits as its factorization.

157023571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 157023571 is about 12530.9046361386. The cubic root of 157023571 is about 539.4960673663.

The spelling of 157023571 in words is "one hundred fifty-seven million, twenty-three thousand, five hundred seventy-one".