157028593 has 2 divisors, whose sum is σ = 157028594. Its totient is φ = 157028592.

The previous prime is 157028587. The next prime is 157028603. The reversal of 157028593 is 395820751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151979584 + 5049009 = 12328^2 + 2247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157028593 is a prime.

It is equal to p_8817178 and since 157028593 and 8817178 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (157028563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78514296 + 78514297.

It is an arithmetic number, because the mean of its divisors is an integer number (78514297).

Almost surely, 2^157028593 is an apocalyptic number.

It is an amenable number.

157028593 is a deficient number, since it is larger than the sum of its proper divisors (1).

157028593 is an equidigital number, since it uses as much as digits as its factorization.

157028593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 157028593 is about 12531.1050191114. The cubic root of 157028593 is about 539.5018187754.

The spelling of 157028593 in words is "one hundred fifty-seven million, twenty-eight thousand, five hundred ninety-three".