136843402 has 8 divisors (see below), whose sum is σ = 212343300. Its totient is φ = 66062304.

The previous prime is 136843397. The next prime is 136843411. The reversal of 136843402 is 204348631.

It can be written as a sum of positive squares in 2 ways, for example, as 136632721 + 210681 = 11689^2 + 459^2 .

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

It is a super-2 number, since 2×136843402² = 37452233341867208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179627 + ... + 1179742.

Almost surely, 2^136843402 is an apocalyptic number.

136843402 is a deficient number, since it is larger than the sum of its proper divisors (75499898).

136843402 is a wasteful number, since it uses less digits than its factorization.

136843402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359400.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 136843402 is about 11698.0084629821. The cubic root of 136843402 is about 515.3171791712.

The spelling of 136843402 in words is "one hundred thirty-six million, eight hundred forty-three thousand, four hundred two".