290617139 has 2 divisors, whose sum is σ = 290617140. Its totient is φ = 290617138.

The previous prime is 290617133. The next prime is 290617153. The reversal of 290617139 is 931716092.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 290617139 - 2⁸ = 290616883 is a prime.

It is not a weakly prime, because it can be changed into another prime (290617133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145308569 + 145308570.

It is an arithmetic number, because the mean of its divisors is an integer number (145308570).

Almost surely, 2^290617139 is an apocalyptic number.

290617139 is a deficient number, since it is larger than the sum of its proper divisors (1).

290617139 is an equidigital number, since it uses as much as digits as its factorization.

290617139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 290617139 is about 17047.4965610790. The cubic root of 290617139 is about 662.3797918366.

The spelling of 290617139 in words is "two hundred ninety million, six hundred seventeen thousand, one hundred thirty-nine".