152257639 has 2 divisors, whose sum is σ = 152257640. Its totient is φ = 152257638.

The previous prime is 152257619. The next prime is 152257663. The reversal of 152257639 is 936752251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 152257639 - 2¹⁷ = 152126567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152257619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76128819 + 76128820.

It is an arithmetic number, because the mean of its divisors is an integer number (76128820).

Almost surely, 2^152257639 is an apocalyptic number.

152257639 is a deficient number, since it is larger than the sum of its proper divisors (1).

152257639 is an equidigital number, since it uses as much as digits as its factorization.

152257639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 152257639 is about 12339.2722232715. The cubic root of 152257639 is about 533.9816877578.

The spelling of 152257639 in words is "one hundred fifty-two million, two hundred fifty-seven thousand, six hundred thirty-nine".