136129490 has 48 divisors (see below), whose sum is σ = 295607232. Its totient is φ = 44208288.

The previous prime is 136129481. The next prime is 136129537. The reversal of 136129490 is 94921631.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 136129490.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22577 + ... + 27963.

It is an arithmetic number, because the mean of its divisors is an integer number (6158484).

Almost surely, 2^136129490 is an apocalyptic number.

136129490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136129490 is an abundant number, since it is smaller than the sum of its proper divisors (159477742).

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

136129490 is a wasteful number, since it uses less digits than its factorization.

136129490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439 (or 5420 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 136129490 is about 11667.4543067458. The cubic root of 136129490 is about 514.4194797182.

The spelling of 136129490 in words is "one hundred thirty-six million, one hundred twenty-nine thousand, four hundred ninety".