11629531 has 2 divisors, whose sum is σ = 11629532. Its totient is φ = 11629530.

The previous prime is 11629529. The next prime is 11629571. The reversal of 11629531 is 13592611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11629531 - 2¹ = 11629529 is a prime.

It is a super-2 number, since 2×11629531² = 270491982559922, which contains 22 as substring.

Together with 11629529, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11629531.

It is not a weakly prime, because it can be changed into another prime (11629571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5814765 + 5814766.

It is an arithmetic number, because the mean of its divisors is an integer number (5814766).

Almost surely, 2^11629531 is an apocalyptic number.

11629531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11629531 is an equidigital number, since it uses as much as digits as its factorization.

11629531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 28.

The square root of 11629531 is about 3410.2098175919. The cubic root of 11629531 is about 226.5621723753.

The spelling of 11629531 in words is "eleven million, six hundred twenty-nine thousand, five hundred thirty-one".