1561376030 has 16 divisors (see below), whose sum is σ = 2810931984. Its totient is φ = 624449280.

The previous prime is 1561376029. The next prime is 1561376071. The reversal of 1561376030 is 306731651.

It is a congruent number.

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, 99950 + ... + 114510.

It is an arithmetic number, because the mean of its divisors is an integer number (175683249).

Almost surely, 2^1561376030 is an apocalyptic number.

1561376030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1561376030 is a deficient number, since it is larger than the sum of its proper divisors (1249555954).

1561376030 is a wasteful number, since it uses less digits than its factorization.

1561376030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25291.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 1561376030 is about 39514.2509735412. The cubic root of 1561376030 is about 1160.1189013079.

The spelling of 1561376030 in words is "one billion, five hundred sixty-one million, three hundred seventy-six thousand, thirty".