469409531 has 2 divisors, whose sum is σ = 469409532. Its totient is φ = 469409530.

The previous prime is 469409513. The next prime is 469409557. The reversal of 469409531 is 135904964.

Together with previous prime (469409513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 469409531 - 2¹⁰ = 469408507 is a prime.

It is a super-2 number, since 2×469409531² = 440690615587279922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (469409581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234704765 + 234704766.

It is an arithmetic number, because the mean of its divisors is an integer number (234704766).

Almost surely, 2^469409531 is an apocalyptic number.

469409531 is a deficient number, since it is larger than the sum of its proper divisors (1).

469409531 is an equidigital number, since it uses as much as digits as its factorization.

469409531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 469409531 is about 21665.8609568141. The cubic root of 469409531 is about 777.1722786278.

The spelling of 469409531 in words is "four hundred sixty-nine million, four hundred nine thousand, five hundred thirty-one".