139867874 has 8 divisors (see below), whose sum is σ = 222143148. Its totient is φ = 65820160.

The previous prime is 139867867. The next prime is 139867907. The reversal of 139867874 is 478768931.

It can be written as a sum of positive squares in 2 ways, for example, as 139830625 + 37249 = 11825^2 + 193^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2056847 + ... + 2056914.

Almost surely, 2^139867874 is an apocalyptic number.

139867874 is a deficient number, since it is larger than the sum of its proper divisors (82275274).

139867874 is a wasteful number, since it uses less digits than its factorization.

139867874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113780.

The product of its digits is 2032128, while the sum is 53.

The square root of 139867874 is about 11826.5749056944. The cubic root of 139867874 is about 519.0860103245.

The spelling of 139867874 in words is "one hundred thirty-nine million, eight hundred sixty-seven thousand, eight hundred seventy-four".