1451385520 has 60 divisors (see below), whose sum is σ = 3654047376. Its totient is φ = 535891200.

The previous prime is 1451385503. The next prime is 1451385553. The reversal of 1451385520 is 255831541.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40156 + ... + 67195.

Almost surely, 2^1451385520 is an apocalyptic number.

1451385520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451385520 is an abundant number, since it is smaller than the sum of its proper divisors (2202661856).

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

1451385520 is a wasteful number, since it uses less digits than its factorization.

1451385520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107390 (or 107371 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 1451385520 is about 38097.0539543414. The cubic root of 1451385520 is about 1132.2115875136.

The spelling of 1451385520 in words is "one billion, four hundred fifty-one million, three hundred eighty-five thousand, five hundred twenty".