1451631460 has 12 divisors (see below), whose sum is σ = 3048426108. Its totient is φ = 580652576.

The previous prime is 1451631449. The next prime is 1451631487. The reversal of 1451631460 is 641361541.

It can be written as a sum of positive squares in 2 ways, for example, as 181279296 + 1270352164 = 13464^2 + 35642^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36290767 + ... + 36290806.

It is an arithmetic number, because the mean of its divisors is an integer number (254035509).

Almost surely, 2^1451631460 is an apocalyptic number.

1451631460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451631460 is an abundant number, since it is smaller than the sum of its proper divisors (1596794648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1451631460 is a wasteful number, since it uses less digits than its factorization.

1451631460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72581582 (or 72581580 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1451631460 is about 38100.2816262557. The cubic root of 1451631460 is about 1132.2755356944.

The spelling of 1451631460 in words is "one billion, four hundred fifty-one million, six hundred thirty-one thousand, four hundred sixty".