130644900 has 135 divisors (see below), whose sum is σ = 426860049. Its totient is φ = 34564320.

The previous prime is 130644889. The next prime is 130644911. The reversal of 130644900 is 9446031.

The square root of 130644900 is 11430.

It is a perfect power (a square), and thus also a powerful number.

130644900 is a `hidden beast` number, since 13 + 0 + 644 + 9 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (130644889) and next prime (130644911).

It can be written as a sum of positive squares in only one way, i.e., 47032164 + 83612736 = 6858^2 + 9144^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1028637 + ... + 1028763.

Almost surely, 2^130644900 is an apocalyptic number.

130644900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130644900 is the 11430-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130644900

130644900 is an abundant number, since it is smaller than the sum of its proper divisors (296215149).

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

130644900 is a wasteful number, since it uses less digits than its factorization.

130644900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The cubic root of 130644900 is about 507.4159955436.

The spelling of 130644900 in words is "one hundred thirty million, six hundred forty-four thousand, nine hundred".