101553140 has 48 divisors (see below), whose sum is σ = 230401920. Its totient is φ = 37376640.

The previous prime is 101553139. The next prime is 101553161. The reversal of 101553140 is 41355101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160625 + ... + 161255.

It is an arithmetic number, because the mean of its divisors is an integer number (4800040).

Almost surely, 2^101553140 is an apocalyptic number.

101553140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101553140 is an abundant number, since it is smaller than the sum of its proper divisors (128848780).

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

101553140 is a wasteful number, since it uses less digits than its factorization.

101553140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 101553140 is about 10077.3577886269. The cubic root of 101553140 is about 466.5495613190.

The spelling of 101553140 in words is "one hundred one million, five hundred fifty-three thousand, one hundred forty".