102606140 has 48 divisors (see below), whose sum is σ = 265202112. Its totient is φ = 32472576.

The previous prime is 102606139. The next prime is 102606173. The reversal of 102606140 is 41606201.

It is a happy number.

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, 26369 + ... + 30008.

It is an arithmetic number, because the mean of its divisors is an integer number (5525044).

Almost surely, 2^102606140 is an apocalyptic number.

102606140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102606140 is an abundant number, since it is smaller than the sum of its proper divisors (162595972).

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

102606140 is a wasteful number, since it uses less digits than its factorization.

102606140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56406 (or 56404 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 102606140 is about 10129.4688903219. The cubic root of 102606140 is about 468.1565636355.

The spelling of 102606140 in words is "one hundred two million, six hundred six thousand, one hundred forty".