1451232120 has 64 divisors (see below), whose sum is σ = 4688601120. Its totient is φ = 357225984.

The previous prime is 1451232077. The next prime is 1451232121. The reversal of 1451232120 is 212321541.

It is a super-2 number, since 2×1451232120² = 4212149332239388800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451232121) 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, 463579 + ... + 466698.

Almost surely, 2^1451232120 is an apocalyptic number.

1451232120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451232120 is an abundant number, since it is smaller than the sum of its proper divisors (3237369000).

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

1451232120 is a wasteful number, since it uses less digits than its factorization.

1451232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930304 (or 930300 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1451232120 is about 38095.0406221072. The cubic root of 1451232120 is about 1132.1716974971.

Adding to 1451232120 its reverse (212321541), we get a palindrome (1663553661).

The spelling of 1451232120 in words is "one billion, four hundred fifty-one million, two hundred thirty-two thousand, one hundred twenty".