157462621 has 2 divisors, whose sum is σ = 157462622. Its totient is φ = 157462620.

The previous prime is 157462607. The next prime is 157462637. The reversal of 157462621 is 126264751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114704100 + 42758521 = 10710^2 + 6539^2 .

It is a cyclic number.

It is not a de Polignac number, because 157462621 - 2¹¹ = 157460573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157462651) 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, 78731310 + 78731311.

It is an arithmetic number, because the mean of its divisors is an integer number (78731311).

Almost surely, 2^157462621 is an apocalyptic number.

It is an amenable number.

157462621 is a deficient number, since it is larger than the sum of its proper divisors (1).

157462621 is an equidigital number, since it uses as much as digits as its factorization.

157462621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 157462621 is about 12548.4110946366. The cubic root of 157462621 is about 539.9984236351.

The spelling of 157462621 in words is "one hundred fifty-seven million, four hundred sixty-two thousand, six hundred twenty-one".