136280390 has 8 divisors (see below), whose sum is σ = 245304720. Its totient is φ = 54512152.

The previous prime is 136280387. The next prime is 136280467. The reversal of 136280390 is 93082631.

136280390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6814010 + ... + 6814029.

It is an arithmetic number, because the mean of its divisors is an integer number (30663090).

Almost surely, 2^136280390 is an apocalyptic number.

136280390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136280390 is a deficient number, since it is larger than the sum of its proper divisors (109024330).

136280390 is a wasteful number, since it uses less digits than its factorization.

136280390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13628046.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 136280390 is about 11673.9192219237. The cubic root of 136280390 is about 514.6094881048.

The spelling of 136280390 in words is "one hundred thirty-six million, two hundred eighty thousand, three hundred ninety".