531161026 has 32 divisors (see below), whose sum is σ = 892108800. Its totient is φ = 235100880.

The previous prime is 531161023. The next prime is 531161051. The reversal of 531161026 is 620161135.

It is not an unprimeable number, because it can be changed into a prime (531161021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414655 + ... + 415933.

It is an arithmetic number, because the mean of its divisors is an integer number (27878400).

Almost surely, 2^531161026 is an apocalyptic number.

531161026 is a deficient number, since it is larger than the sum of its proper divisors (360947774).

531161026 is a wasteful number, since it uses less digits than its factorization.

531161026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 531161026 is about 23046.9309453558. The cubic root of 531161026 is about 809.8577334859.

The spelling of 531161026 in words is "five hundred thirty-one million, one hundred sixty-one thousand, twenty-six".