1561150332 has 36 divisors (see below), whose sum is σ = 4509990576. Its totient is φ = 446042880.

The previous prime is 1561150319. The next prime is 1561150397. The reversal of 1561150332 is 2330511651.

1561150332 is a `hidden beast` number, since 15 + 611 + 5 + 0 + 3 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1561150296 and 1561150305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3097269 + ... + 3097772.

It is an arithmetic number, because the mean of its divisors is an integer number (125277516).

Almost surely, 2^1561150332 is an apocalyptic number.

1561150332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1561150332 is an abundant number, since it is smaller than the sum of its proper divisors (2948840244).

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

1561150332 is a wasteful number, since it uses less digits than its factorization.

1561150332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195058 (or 6195053 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1561150332 is about 39511.3949639848. The cubic root of 1561150332 is about 1160.0629999474.

Adding to 1561150332 its reverse (2330511651), we get a palindrome (3891661983).

The spelling of 1561150332 in words is "one billion, five hundred sixty-one million, one hundred fifty thousand, three hundred thirty-two".