1561260424 has 32 divisors (see below), whose sum is σ = 3084920640. Its totient is φ = 739288000.

The previous prime is 1561260377. The next prime is 1561260427. The reversal of 1561260424 is 4240621651.

It is a happy number.

It is a super-2 number, since 2×1561260424² = 4875068223097319552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1561260427) 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, 23422 + ... + 60589.

It is an arithmetic number, because the mean of its divisors is an integer number (96403770).

Almost surely, 2^1561260424 is an apocalyptic number.

It is an amenable number.

1561260424 is a deficient number, since it is larger than the sum of its proper divisors (1523660216).

1561260424 is a wasteful number, since it uses less digits than its factorization.

1561260424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84141 (or 84137 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1561260424 is about 39512.7881071432. The cubic root of 1561260424 is about 1160.0902684411.

The spelling of 1561260424 in words is "one billion, five hundred sixty-one million, two hundred sixty thousand, four hundred twenty-four".