1541981232 has 80 divisors (see below), whose sum is σ = 4828440960. Its totient is φ = 467265600.

The previous prime is 1541981227. The next prime is 1541981237. The reversal of 1541981232 is 2321891451.

1541981232 is a `hidden beast` number, since 1 + 5 + 419 + 8 + 1 + 232 = 666.

It is an interprime number because it is at equal distance from previous prime (1541981227) and next prime (1541981237).

It is a super-2 number, since 2×1541981232² = 4755412239680475648, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1541981237) 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, 157494 + ... + 166997.

It is an arithmetic number, because the mean of its divisors is an integer number (60355512).

Almost surely, 2^1541981232 is an apocalyptic number.

1541981232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1541981232 is an abundant number, since it is smaller than the sum of its proper divisors (3286459728).

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

1541981232 is a wasteful number, since it uses less digits than its factorization.

1541981232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324519 (or 324507 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1541981232 is about 39268.0688600802. The cubic root of 1541981232 is about 1155.2953604556.

The spelling of 1541981232 in words is "one billion, five hundred forty-one million, nine hundred eighty-one thousand, two hundred thirty-two".