136488490 has 8 divisors (see below), whose sum is σ = 245679300. Its totient is φ = 54595392.

The previous prime is 136488479. The next prime is 136488491. The reversal of 136488490 is 94884631.

It can be written as a sum of positive squares in 2 ways, for example, as 136352329 + 136161 = 11677^2 + 369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (136488491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6824415 + ... + 6824434.

Almost surely, 2^136488490 is an apocalyptic number.

136488490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136488490 is a deficient number, since it is larger than the sum of its proper divisors (109190810).

136488490 is a wasteful number, since it uses less digits than its factorization.

136488490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13648856.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 136488490 is about 11682.8288526367. The cubic root of 136488490 is about 514.8712909261.

The spelling of 136488490 in words is "one hundred thirty-six million, four hundred eighty-eight thousand, four hundred ninety".