290413531 has 2 divisors, whose sum is σ = 290413532. Its totient is φ = 290413530.

The previous prime is 290413483. The next prime is 290413561. The reversal of 290413531 is 135314092.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 290413531 - 2¹⁷ = 290282459 is a prime.

It is a super-2 number, since 2×290413531² = 168680037975775922, 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 290413531.

It is not a weakly prime, because it can be changed into another prime (290413561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145206765 + 145206766.

It is an arithmetic number, because the mean of its divisors is an integer number (145206766).

Almost surely, 2^290413531 is an apocalyptic number.

290413531 is a deficient number, since it is larger than the sum of its proper divisors (1).

290413531 is an equidigital number, since it uses as much as digits as its factorization.

290413531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 290413531 is about 17041.5237288219. The cubic root of 290413531 is about 662.2250666963.

The spelling of 290413531 in words is "two hundred ninety million, four hundred thirteen thousand, five hundred thirty-one".