136774980 has 192 divisors, whose sum is σ = 446342400. Its totient is φ = 35178624.

The previous prime is 136774969. The next prime is 136775021. The reversal of 136774980 is 89477631.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2318191 + ... + 2318249.

It is an arithmetic number, because the mean of its divisors is an integer number (2324700).

Almost surely, 2^136774980 is an apocalyptic number.

136774980 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 136774980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223171200).

136774980 is an abundant number, since it is smaller than the sum of its proper divisors (309567420).

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

136774980 is an equidigital number, since it uses as much as digits as its factorization.

136774980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 136774980 is about 11695.0835824290. The cubic root of 136774980 is about 515.2312782809.

The spelling of 136774980 in words is "one hundred thirty-six million, seven hundred seventy-four thousand, nine hundred eighty".