130111640 has 32 divisors (see below), whose sum is σ = 294900480. Its totient is φ = 51662592.

The previous prime is 130111637. The next prime is 130111687. The reversal of 130111640 is 46111031.

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, 6392 + ... + 17351.

It is an arithmetic number, because the mean of its divisors is an integer number (9215640).

Almost surely, 2^130111640 is an apocalyptic number.

130111640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130111640 is an abundant number, since it is smaller than the sum of its proper divisors (164788840).

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

130111640 is a wasteful number, since it uses less digits than its factorization.

130111640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23891 (or 23887 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 130111640 is about 11406.6489382290. The cubic root of 130111640 is about 506.7246721063.

Adding to 130111640 its reverse (46111031), we get a palindrome (176222671).

The spelling of 130111640 in words is "one hundred thirty million, one hundred eleven thousand, six hundred forty".