139263253 has 8 divisors (see below), whose sum is σ = 144564480. Its totient is φ = 134012640.

The previous prime is 139263251. The next prime is 139263259. The reversal of 139263253 is 352362931.

139263253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 139263253 - 2¹ = 139263251 is a prime.

It is a super-2 number, since 2×139263253² = 38788507272284018, 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 (139263251) 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, 7000 + ... + 18097.

It is an arithmetic number, because the mean of its divisors is an integer number (18070560).

Almost surely, 2^139263253 is an apocalyptic number.

It is an amenable number.

139263253 is a deficient number, since it is larger than the sum of its proper divisors (5301227).

139263253 is a wasteful number, since it uses less digits than its factorization.

139263253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25307.

The product of its digits is 29160, while the sum is 34.

The square root of 139263253 is about 11800.9852554776. The cubic root of 139263253 is about 518.3369614296.

The spelling of 139263253 in words is "one hundred thirty-nine million, two hundred sixty-three thousand, two hundred fifty-three".