1975131456 has 112 divisors (see below), whose sum is σ = 5326928640. Its totient is φ = 645765120.

The previous prime is 1975131439. The next prime is 1975131467. The reversal of 1975131456 is 6541315791.

It is a super-2 number, since 2×1975131456² = 7802288536961359872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2987766 + ... + 2988426.

Almost surely, 2^1975131456 is an apocalyptic number.

1975131456 is a gapful number since it is divisible by the number (16) 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 1975131456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2663464320).

1975131456 is an abundant number, since it is smaller than the sum of its proper divisors (3351797184).

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

1975131456 is a wasteful number, since it uses less digits than its factorization.

1975131456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 942 counting only the distinct ones).

The product of its digits is 113400, while the sum is 42.

The square root of 1975131456 is about 44442.4510575193. The cubic root of 1975131456 is about 1254.6771879159.

The spelling of 1975131456 in words is "one billion, nine hundred seventy-five million, one hundred thirty-one thousand, four hundred fifty-six".