531451401 has 16 divisors (see below), whose sum is σ = 773861760. Its totient is φ = 322439040.

The previous prime is 531451391. The next prime is 531451429. The reversal of 531451401 is 104154135.

It is a happy number.

It is not a de Polignac number, because 531451401 - 2⁷ = 531451273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (531451441) 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, 93196 + ... + 98733.

It is an arithmetic number, because the mean of its divisors is an integer number (48366360).

Almost surely, 2^531451401 is an apocalyptic number.

It is an amenable number.

531451401 is a deficient number, since it is larger than the sum of its proper divisors (242410359).

531451401 is a wasteful number, since it uses less digits than its factorization.

531451401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192016.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 531451401 is about 23053.2297303436. The cubic root of 531451401 is about 810.0052842210.

The spelling of 531451401 in words is "five hundred thirty-one million, four hundred fifty-one thousand, four hundred one".