101908530 has 40 divisors (see below), whose sum is σ = 274022892. Its totient is φ = 27175392.

The previous prime is 101908519. The next prime is 101908531. The reversal of 101908530 is 35809101.

It can be written as a sum of positive squares in 2 ways, for example, as 85433049 + 16475481 = 9243^2 + 4059^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 101908494 and 101908503.

It is not an unprimeable number, because it can be changed into a prime (101908531) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62097 + ... + 63716.

Almost surely, 2^101908530 is an apocalyptic number.

101908530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101908530 is an abundant number, since it is smaller than the sum of its proper divisors (172114362).

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

101908530 is a wasteful number, since it uses less digits than its factorization.

101908530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125832 (or 125823 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 101908530 is about 10094.9754828826. The cubic root of 101908530 is about 467.0931650823.

The spelling of 101908530 in words is "one hundred one million, nine hundred eight thousand, five hundred thirty".