101656542 has 48 divisors (see below), whose sum is σ = 227813040. Its totient is φ = 30191616.

The previous prime is 101656537. The next prime is 101656543. The reversal of 101656542 is 245656101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101656543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27678 + ... + 31134.

It is an arithmetic number, because the mean of its divisors is an integer number (4746105).

Almost surely, 2^101656542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101656542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113906520).

101656542 is an abundant number, since it is smaller than the sum of its proper divisors (126156498).

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

101656542 is a wasteful number, since it uses less digits than its factorization.

101656542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517 (or 3504 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 101656542 is about 10082.4868956027. The cubic root of 101656542 is about 466.7078554348.

The spelling of 101656542 in words is "one hundred one million, six hundred fifty-six thousand, five hundred forty-two".