136247290 has 16 divisors (see below), whose sum is σ = 258153120. Its totient is φ = 51630480.

The previous prime is 136247281. The next prime is 136247291. The reversal of 136247290 is 92742631.

It is not an unprimeable number, because it can be changed into a prime (136247291) 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, 358356 + ... + 358735.

It is an arithmetic number, because the mean of its divisors is an integer number (16134570).

Almost surely, 2^136247290 is an apocalyptic number.

136247290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136247290 is a deficient number, since it is larger than the sum of its proper divisors (121905830).

136247290 is a wasteful number, since it uses less digits than its factorization.

136247290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717117.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 136247290 is about 11672.5014457056. The cubic root of 136247290 is about 514.5678216716.

The spelling of 136247290 in words is "one hundred thirty-six million, two hundred forty-seven thousand, two hundred ninety".