1561412652 has 24 divisors (see below), whose sum is σ = 3656847600. Its totient is φ = 518534976.

The previous prime is 1561412627. The next prime is 1561412747. The reversal of 1561412652 is 2562141651.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238627 + ... + 245082.

It is an arithmetic number, because the mean of its divisors is an integer number (152368650).

Almost surely, 2^1561412652 is an apocalyptic number.

1561412652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1561412652 is an abundant number, since it is smaller than the sum of its proper divisors (2095434948).

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

1561412652 is a wasteful number, since it uses less digits than its factorization.

1561412652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483985 (or 483983 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 1561412652 is about 39514.7143732559. The cubic root of 1561412652 is about 1160.1279714147.

The spelling of 1561412652 in words is "one billion, five hundred sixty-one million, four hundred twelve thousand, six hundred fifty-two".