451015231 has 2 divisors, whose sum is σ = 451015232. Its totient is φ = 451015230.

The previous prime is 451015223. The next prime is 451015241. The reversal of 451015231 is 132510154.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 451015231 - 2³ = 451015223 is a prime.

It is a super-2 number, since 2×451015231² = 406829477187966722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451015241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225507615 + 225507616.

It is an arithmetic number, because the mean of its divisors is an integer number (225507616).

Almost surely, 2^451015231 is an apocalyptic number.

451015231 is a deficient number, since it is larger than the sum of its proper divisors (1).

451015231 is an equidigital number, since it uses as much as digits as its factorization.

451015231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 451015231 is about 21237.1191784573. The cubic root of 451015231 is about 766.8852818483.

Adding to 451015231 its reverse (132510154), we get a palindrome (583525385).

The spelling of 451015231 in words is "four hundred fifty-one million, fifteen thousand, two hundred thirty-one".