136943020 has 24 divisors (see below), whose sum is σ = 287847504. Its totient is φ = 54726336.

The previous prime is 136942997. The next prime is 136943021. The reversal of 136943020 is 20349631.

It is a self number, because there is not a number n which added to its sum of digits gives 136943020.

It is not an unprimeable number, because it can be changed into a prime (136943021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24967 + ... + 29953.

It is an arithmetic number, because the mean of its divisors is an integer number (11993646).

Almost surely, 2^136943020 is an apocalyptic number.

136943020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136943020 is an abundant number, since it is smaller than the sum of its proper divisors (150904484).

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

136943020 is a wasteful number, since it uses less digits than its factorization.

136943020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6369 (or 6367 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 136943020 is about 11702.2655926107. The cubic root of 136943020 is about 515.4421941257.

The spelling of 136943020 in words is "one hundred thirty-six million, nine hundred forty-three thousand, twenty".