157428113 has 2 divisors, whose sum is σ = 157428114. Its totient is φ = 157428112.

The previous prime is 157428083. The next prime is 157428133. The reversal of 157428113 is 311824751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156550144 + 877969 = 12512^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 157428113 - 2⁶ = 157428049 is a prime.

It is a super-2 number, since 2×157428113² = 49567221525481538, which contains 22 as substring.

It is equal to p_8838311 and since 157428113 and 8838311 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157428113.

It is not a weakly prime, because it can be changed into another prime (157428133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78714056 + 78714057.

It is an arithmetic number, because the mean of its divisors is an integer number (78714057).

Almost surely, 2^157428113 is an apocalyptic number.

It is an amenable number.

157428113 is a deficient number, since it is larger than the sum of its proper divisors (1).

157428113 is an equidigital number, since it uses as much as digits as its factorization.

157428113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 157428113 is about 12547.0360244960. The cubic root of 157428113 is about 539.9589737921.

The spelling of 157428113 in words is "one hundred fifty-seven million, four hundred twenty-eight thousand, one hundred thirteen".