136964920 has 64 divisors (see below), whose sum is σ = 343504800. Its totient is φ = 48844800.

The previous prime is 136964917. The next prime is 136964929. The reversal of 136964920 is 29469631.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136964929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7620 + ... + 18220.

Almost surely, 2^136964920 is an apocalyptic number.

136964920 is a gapful number since it is divisible by the number (10) 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 136964920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171752400).

136964920 is an abundant number, since it is smaller than the sum of its proper divisors (206539880).

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

136964920 is a wasteful number, since it uses less digits than its factorization.

136964920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648 (or 10644 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 136964920 is about 11703.2012714471. The cubic root of 136964920 is about 515.4696692570.

The spelling of 136964920 in words is "one hundred thirty-six million, nine hundred sixty-four thousand, nine hundred twenty".