139690053 has 6 divisors (see below), whose sum is σ = 201774534. Its totient is φ = 93126696.

The previous prime is 139690051. The next prime is 139690087. The reversal of 139690053 is 350096931.

It can be written as a sum of positive squares in only one way, i.e., 106131204 + 33558849 = 10302^2 + 5793^2 .

It is not a de Polignac number, because 139690053 - 2¹ = 139690051 is a prime.

It is a super-3 number, since 3×139690053³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139690051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7760550 + ... + 7760567.

It is an arithmetic number, because the mean of its divisors is an integer number (33629089).

Almost surely, 2^139690053 is an apocalyptic number.

It is an amenable number.

139690053 is a deficient number, since it is larger than the sum of its proper divisors (62084481).

139690053 is a wasteful number, since it uses less digits than its factorization.

139690053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15521123 (or 15521120 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 139690053 is about 11819.0546576281. The cubic root of 139690053 is about 518.8659370617.

The spelling of 139690053 in words is "one hundred thirty-nine million, six hundred ninety thousand, fifty-three".