139568153 has 4 divisors (see below), whose sum is σ = 142813968. Its totient is φ = 136322340.

The previous prime is 139568137. The next prime is 139568171. The reversal of 139568153 is 351865931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 351865931 = 2699 ⋅130369.

It is a cyclic number.

It is not a de Polignac number, because 139568153 - 2⁴ = 139568137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139568153.

It is not an unprimeable number, because it can be changed into a prime (139568173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1622843 + ... + 1622928.

It is an arithmetic number, because the mean of its divisors is an integer number (35703492).

Almost surely, 2^139568153 is an apocalyptic number.

It is an amenable number.

139568153 is a deficient number, since it is larger than the sum of its proper divisors (3245815).

139568153 is an equidigital number, since it uses as much as digits as its factorization.

139568153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245814.

The product of its digits is 97200, while the sum is 41.

The square root of 139568153 is about 11813.8966052696. The cubic root of 139568153 is about 518.7149643343.

The spelling of 139568153 in words is "one hundred thirty-nine million, five hundred sixty-eight thousand, one hundred fifty-three".