136544490 has 24 divisors (see below), whose sum is σ = 355015908. Its totient is φ = 36411840.

The previous prime is 136544489. The next prime is 136544497. The reversal of 136544490 is 94445631.

It can be written as a sum of positive squares in 2 ways, for example, as 115283169 + 21261321 = 10737^2 + 4611^2 .

It is not an unprimeable number, because it can be changed into a prime (136544497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 758491 + ... + 758670.

Almost surely, 2^136544490 is an apocalyptic number.

136544490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136544490 is an abundant number, since it is smaller than the sum of its proper divisors (218471418).

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

136544490 is a wasteful number, since it uses less digits than its factorization.

136544490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517174 (or 1517171 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 136544490 is about 11685.2252866601. The cubic root of 136544490 is about 514.9416969848.

The spelling of 136544490 in words is "one hundred thirty-six million, five hundred forty-four thousand, four hundred ninety".