131605030 has 16 divisors (see below), whose sum is σ = 237122640. Its totient is φ = 52590112.

The previous prime is 131605027. The next prime is 131605051. The reversal of 131605030 is 30506131.

It is a junction number, because it is equal to n+sod(n) for n = 131604989 and 131605007.

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, 5157 + ... + 17023.

It is an arithmetic number, because the mean of its divisors is an integer number (14820165).

Almost surely, 2^131605030 is an apocalyptic number.

131605030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131605030 is a deficient number, since it is larger than the sum of its proper divisors (105517610).

131605030 is a wasteful number, since it uses less digits than its factorization.

131605030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12983.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 131605030 is about 11471.9235527439. The cubic root of 131605030 is about 508.6559896078.

The spelling of 131605030 in words is "one hundred thirty-one million, six hundred five thousand, thirty".