153252139 has 2 divisors, whose sum is σ = 153252140. Its totient is φ = 153252138.

The previous prime is 153252133. The next prime is 153252149. The reversal of 153252139 is 931252351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 153252139 - 2³ = 153252131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153252139.

It is not a weakly prime, because it can be changed into another prime (153252131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76626069 + 76626070.

It is an arithmetic number, because the mean of its divisors is an integer number (76626070).

Almost surely, 2^153252139 is an apocalyptic number.

153252139 is a deficient number, since it is larger than the sum of its proper divisors (1).

153252139 is an equidigital number, since it uses as much as digits as its factorization.

153252139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 31.

The square root of 153252139 is about 12379.5047962348. The cubic root of 153252139 is about 535.1417669550.

The spelling of 153252139 in words is "one hundred fifty-three million, two hundred fifty-two thousand, one hundred thirty-nine".