130156544 has 72 divisors (see below), whose sum is σ = 302972670. Its totient is φ = 55738368.

The previous prime is 130156541. The next prime is 130156549. The reversal of 130156544 is 445651031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68690944 + 61465600 = 8288^2 + 7840^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130156541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99704 + ... + 101000.

Almost surely, 2^130156544 is an apocalyptic number.

130156544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130156544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151486335).

130156544 is an abundant number, since it is smaller than the sum of its proper divisors (172816126).

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

130156544 is an equidigital number, since it uses as much as digits as its factorization.

130156544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 130156544 is about 11408.6170941092. The cubic root of 130156544 is about 506.7829588401.

The spelling of 130156544 in words is "one hundred thirty million, one hundred fifty-six thousand, five hundred forty-four".