136926972 has 144 divisors (see below), whose sum is σ = 435198400. Its totient is φ = 36070272.

The previous prime is 136926967. The next prime is 136926989. The reversal of 136926972 is 279629631.

It is a happy number.

136926972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×136926972² = 37497991322177568, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160098 + ... + 160950.

Almost surely, 2^136926972 is an apocalyptic number.

136926972 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 136926972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217599200).

136926972 is an abundant number, since it is smaller than the sum of its proper divisors (298271428).

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

136926972 is a wasteful number, since it uses less digits than its factorization.

136926972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 878 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 136926972 is about 11701.5798933306. The cubic root of 136926972 is about 515.4220588912.

The spelling of 136926972 in words is "one hundred thirty-six million, nine hundred twenty-six thousand, nine hundred seventy-two".