136442952 has 96 divisors (see below), whose sum is σ = 411933600. Its totient is φ = 40545792.

The previous prime is 136442947. The next prime is 136442981. The reversal of 136442952 is 259244631.

It is a happy number.

136442952 is a `hidden beast` number, since 1 + 3 + 644 + 2 + 9 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20323 + ... + 26189.

It is an arithmetic number, because the mean of its divisors is an integer number (4290975).

Almost surely, 2^136442952 is an apocalyptic number.

136442952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136442952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205966800).

136442952 is an abundant number, since it is smaller than the sum of its proper divisors (275490648).

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

136442952 is a wasteful number, since it uses less digits than its factorization.

136442952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915 (or 5908 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 136442952 is about 11680.8797613878. The cubic root of 136442952 is about 514.8140240292.

The spelling of 136442952 in words is "one hundred thirty-six million, four hundred forty-two thousand, nine hundred fifty-two".