451431145 has 16 divisors (see below), whose sum is σ = 610030080. Its totient is φ = 317721600.

The previous prime is 451431131. The next prime is 451431173. The reversal of 451431145 is 541134154.

451431145 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 451431145 - 2¹³ = 451422953 is a prime.

It is a super-2 number, since 2×451431145² = 407580157352022050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130680 + ... + 134089.

It is an arithmetic number, because the mean of its divisors is an integer number (38126880).

Almost surely, 2^451431145 is an apocalyptic number.

It is an amenable number.

451431145 is a deficient number, since it is larger than the sum of its proper divisors (158598935).

451431145 is a wasteful number, since it uses less digits than its factorization.

451431145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264816.

The product of its digits is 4800, while the sum is 28.

The square root of 451431145 is about 21246.9090693211. The cubic root of 451431145 is about 767.1209430178.

Adding to 451431145 its reverse (541134154), we get a palindrome (992565299).

The spelling of 451431145 in words is "four hundred fifty-one million, four hundred thirty-one thousand, one hundred forty-five".