455645139 has 8 divisors (see below), whose sum is σ = 612311040. Its totient is φ = 301371336.

The previous prime is 455645131. The next prime is 455645143. The reversal of 455645139 is 931546554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 455645139 - 2³ = 455645131 is a prime.

It is a super-2 number, since 2×455645139² = 415224985388658642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 455645139.

It is not an unprimeable number, because it can be changed into a prime (455645131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597579 + ... + 598340.

It is an arithmetic number, because the mean of its divisors is an integer number (76538880).

Almost surely, 2^455645139 is an apocalyptic number.

455645139 is a deficient number, since it is larger than the sum of its proper divisors (156665901).

455645139 is a wasteful number, since it uses less digits than its factorization.

455645139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196049.

The product of its digits is 324000, while the sum is 42.

The square root of 455645139 is about 21345.8459424779. The cubic root of 455645139 is about 769.5005131891.

The spelling of 455645139 in words is "four hundred fifty-five million, six hundred forty-five thousand, one hundred thirty-nine".