1451665152 has 360 divisors, whose sum is σ = 5051345376. Its totient is φ = 406093824.

The previous prime is 1451665109. The next prime is 1451665169. The reversal of 1451665152 is 2515661541.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10596028 + ... + 10596164.

Almost surely, 2^1451665152 is an apocalyptic number.

1451665152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1451665152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2525672688).

1451665152 is an abundant number, since it is smaller than the sum of its proper divisors (3599680224).

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

1451665152 is an equidigital number, since it uses as much as digits as its factorization.

1451665152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 222 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 1451665152 is about 38100.7237726529. The cubic root of 1451665152 is about 1132.2842955698.

The spelling of 1451665152 in words is "one billion, four hundred fifty-one million, six hundred sixty-five thousand, one hundred fifty-two".