451651145 has 32 divisors (see below), whose sum is σ = 607837824. Its totient is φ = 319334400.

The previous prime is 451651129. The next prime is 451651199. The reversal of 451651145 is 541156154.

It is not a de Polignac number, because 451651145 - 2⁴ = 451651129 is a prime.

It is a super-2 number, since 2×451651145² = 407977513559622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 834575 + ... + 835115.

It is an arithmetic number, because the mean of its divisors is an integer number (18994932).

Almost surely, 2^451651145 is an apocalyptic number.

It is an amenable number.

451651145 is a deficient number, since it is larger than the sum of its proper divisors (156186679).

451651145 is a wasteful number, since it uses less digits than its factorization.

451651145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its digits is 12000, while the sum is 32.

The square root of 451651145 is about 21252.0856623532. The cubic root of 451651145 is about 767.2455387627.

The spelling of 451651145 in words is "four hundred fifty-one million, six hundred fifty-one thousand, one hundred forty-five".