136390738 has 8 divisors (see below), whose sum is σ = 223184880. Its totient is φ = 61995780.

The previous prime is 136390729. The next prime is 136390747. The reversal of 136390738 is 837093631.

It is an interprime number because it is at equal distance from previous prime (136390729) and next prime (136390747).

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

It is a self number, because there is not a number n which added to its sum of digits gives 136390738.

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, 3099768 + ... + 3099811.

It is an arithmetic number, because the mean of its divisors is an integer number (27898110).

Almost surely, 2^136390738 is an apocalyptic number.

136390738 is a deficient number, since it is larger than the sum of its proper divisors (86794142).

136390738 is a wasteful number, since it uses less digits than its factorization.

136390738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6199592.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 136390738 is about 11678.6445275126. The cubic root of 136390738 is about 514.7483459597.

The spelling of 136390738 in words is "one hundred thirty-six million, three hundred ninety thousand, seven hundred thirty-eight".