455617139 has 2 divisors, whose sum is σ = 455617140. Its totient is φ = 455617138.

The previous prime is 455617109. The next prime is 455617147. The reversal of 455617139 is 931716554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 455617139 - 2¹² = 455613043 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 455617096 and 455617105.

It is not a weakly prime, because it can be changed into another prime (455617109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227808569 + 227808570.

It is an arithmetic number, because the mean of its divisors is an integer number (227808570).

Almost surely, 2^455617139 is an apocalyptic number.

455617139 is a deficient number, since it is larger than the sum of its proper divisors (1).

455617139 is an equidigital number, since it uses as much as digits as its factorization.

455617139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The square root of 455617139 is about 21345.1900670854. The cubic root of 455617139 is about 769.4847505895.

The spelling of 455617139 in words is "four hundred fifty-five million, six hundred seventeen thousand, one hundred thirty-nine".