103129620 has 48 divisors (see below), whose sum is σ = 315016128. Its totient is φ = 25000960.

The previous prime is 103129613. The next prime is 103129639. The reversal of 103129620 is 26921301.

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, 77469 + ... + 78788.

It is an arithmetic number, because the mean of its divisors is an integer number (6562836).

Almost surely, 2^103129620 is an apocalyptic number.

103129620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103129620 is an abundant number, since it is smaller than the sum of its proper divisors (211886508).

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

103129620 is a wasteful number, since it uses less digits than its factorization.

103129620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156280 (or 156278 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 103129620 is about 10155.2754763226. The cubic root of 103129620 is about 468.9513666397.

The spelling of 103129620 in words is "one hundred three million, one hundred twenty-nine thousand, six hundred twenty".