136423572 has 96 divisors (see below), whose sum is σ = 361226880. Its totient is φ = 39813120.

The previous prime is 136423559. The next prime is 136423577. The reversal of 136423572 is 275324631.

It is a super-2 number, since 2×136423572² = 37222781994478368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136423577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236148 + ... + 236724.

It is an arithmetic number, because the mean of its divisors is an integer number (3762780).

Almost surely, 2^136423572 is an apocalyptic number.

136423572 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 136423572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180613440).

136423572 is an abundant number, since it is smaller than the sum of its proper divisors (224803308).

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

136423572 is a wasteful number, since it uses less digits than its factorization.

136423572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 679 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 136423572 is about 11680.0501711251. The cubic root of 136423572 is about 514.7896485960.

The spelling of 136423572 in words is "one hundred thirty-six million, four hundred twenty-three thousand, five hundred seventy-two".