101425980 has 24 divisors (see below), whose sum is σ = 283992912. Its totient is φ = 27046912.

The previous prime is 101425931. The next prime is 101425999. The reversal of 101425980 is 89524101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845157 + ... + 845276.

It is an arithmetic number, because the mean of its divisors is an integer number (11833038).

Almost surely, 2^101425980 is an apocalyptic number.

101425980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101425980 is an abundant number, since it is smaller than the sum of its proper divisors (182566932).

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

101425980 is a wasteful number, since it uses less digits than its factorization.

101425980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690445 (or 1690443 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 101425980 is about 10071.0466188972. The cubic root of 101425980 is about 466.3547496129.

The spelling of 101425980 in words is "one hundred one million, four hundred twenty-five thousand, nine hundred eighty".