1316561430 has 64 divisors (see below), whose sum is σ = 3461019840. Its totient is φ = 319033344.

The previous prime is 1316561429. The next prime is 1316561443. The reversal of 1316561430 is 341656131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29719 + ... + 59298.

It is an arithmetic number, because the mean of its divisors is an integer number (54078435).

Almost surely, 2^1316561430 is an apocalyptic number.

1316561430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1316561430 is an abundant number, since it is smaller than the sum of its proper divisors (2144458410).

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

1316561430 is a wasteful number, since it uses less digits than its factorization.

1316561430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89073.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1316561430 is about 36284.4516287624. The cubic root of 1316561430 is about 1096.0079624291.

The spelling of 1316561430 in words is "one billion, three hundred sixteen million, five hundred sixty-one thousand, four hundred thirty".