1451976128 has 56 divisors (see below), whose sum is σ = 2977469280. Its totient is φ = 702141440.

The previous prime is 1451976121. The next prime is 1451976139. The reversal of 1451976128 is 8216791541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451976121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237818 + ... + 243846.

Almost surely, 2^1451976128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1451976128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488734640).

1451976128 is an abundant number, since it is smaller than the sum of its proper divisors (1525493152).

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

1451976128 is an equidigital number, since it uses as much as digits as its factorization.

1451976128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6165 (or 6155 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The square root of 1451976128 is about 38104.8045264636. The cubic root of 1451976128 is about 1132.3651425200.

The spelling of 1451976128 in words is "one billion, four hundred fifty-one million, nine hundred seventy-six thousand, one hundred twenty-eight".