139718053 has 8 divisors (see below), whose sum is σ = 149295960. Its totient is φ = 130291200.

The previous prime is 139718011. The next prime is 139718069. The reversal of 139718053 is 350817931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40157569 + 99560484 = 6337^2 + 9978^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 139718053 - 2⁹ = 139717541 is a prime.

It is a super-2 number, since 2×139718053² = 39042268668221618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139718003) 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, 35848 + ... + 39553.

It is an arithmetic number, because the mean of its divisors is an integer number (18661995).

Almost surely, 2^139718053 is an apocalyptic number.

It is an amenable number.

139718053 is a deficient number, since it is larger than the sum of its proper divisors (9577907).

139718053 is a wasteful number, since it uses less digits than its factorization.

139718053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75527.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 139718053 is about 11820.2391261768. The cubic root of 139718053 is about 518.9006025595.

Subtracting 139718053 from its reverse (350817931), we obtain a triangular number (211099878 = T₂₀₅₄₇).

The spelling of 139718053 in words is "one hundred thirty-nine million, seven hundred eighteen thousand, fifty-three".