531901969 has 3 divisors (see below), whose sum is σ = 531925033. Its totient is φ = 531878906.

The previous prime is 531901949. The next prime is 531902009. The reversal of 531901969 is 969109135.

The square root of 531901969 is 23063.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 531901969 - 2²¹ = 529804817 is a prime.

It is a super-2 number, since 2×531901969² = 565839409252153922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531901919) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11532 + ... + 34594.

Almost surely, 2^531901969 is an apocalyptic number.

531901969 is the 23063-rd square number.

531901969 is the 11532-nd centered octagonal number.

It is an amenable number.

531901969 is a deficient number, since it is larger than the sum of its proper divisors (23064).

531901969 is an frugal number, since it uses more digits than its factorization.

531901969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46126 (or 23063 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 43.

The cubic root of 531901969 is about 810.2341288338.

It can be divided in two parts, 531 and 901969, that added together give a square (902500 = 950²).

The spelling of 531901969 in words is "five hundred thirty-one million, nine hundred one thousand, nine hundred sixty-nine".