1451551401 has 16 divisors (see below), whose sum is σ = 2162334720. Its totient is φ = 962351280.

The previous prime is 1451551397. The next prime is 1451551411. The reversal of 1451551401 is 1041551541.

1451551401 is a `hidden beast` number, since 1 + 4 + 515 + 5 + 140 + 1 = 666.

It is not a de Polignac number, because 1451551401 - 2² = 1451551397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1451551411) 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, 143625 + ... + 153398.

It is an arithmetic number, because the mean of its divisors is an integer number (135145920).

Almost surely, 2^1451551401 is an apocalyptic number.

It is an amenable number.

1451551401 is a deficient number, since it is larger than the sum of its proper divisors (710783319).

1451551401 is a wasteful number, since it uses less digits than its factorization.

1451551401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297213 (or 297207 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 1451551401 is about 38099.2309764909. The cubic root of 1451551401 is about 1132.2547199166.

The spelling of 1451551401 in words is "one billion, four hundred fifty-one million, five hundred fifty-one thousand, four hundred one".