655094139 has 32 divisors (see below), whose sum is σ = 1058328576. Its totient is φ = 352460160.

The previous prime is 655094129. The next prime is 655094161. The reversal of 655094139 is 931490556.

It is not a de Polignac number, because 655094139 - 2⁴ = 655094123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655094139.

It is not an unprimeable number, because it can be changed into a prime (655094129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10489 + ... + 37685.

It is an arithmetic number, because the mean of its divisors is an integer number (33072768).

Almost surely, 2^655094139 is an apocalyptic number.

655094139 is a deficient number, since it is larger than the sum of its proper divisors (403234437).

655094139 is a wasteful number, since it uses less digits than its factorization.

655094139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27275.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 655094139 is about 25594.8068756144. The cubic root of 655094139 is about 868.4961641025.

The spelling of 655094139 in words is "six hundred fifty-five million, ninety-four thousand, one hundred thirty-nine".