2139689253 has 32 divisors (see below), whose sum is σ = 3129938560. Its totient is φ = 1292163840.

The previous prime is 2139689249. The next prime is 2139689257. The reversal of 2139689253 is 3529869312.

It is an interprime number because it is at equal distance from previous prime (2139689249) and next prime (2139689257).

It is not a de Polignac number, because 2139689253 - 2² = 2139689249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139689257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1471875 + ... + 1473327.

It is an arithmetic number, because the mean of its divisors is an integer number (97810580).

Almost surely, 2^2139689253 is an apocalyptic number.

It is an amenable number.

2139689253 is a deficient number, since it is larger than the sum of its proper divisors (990249307).

2139689253 is a wasteful number, since it uses less digits than its factorization.

2139689253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149.

The product of its digits is 699840, while the sum is 48.

The square root of 2139689253 is about 46256.7752118541. The cubic root of 2139689253 is about 1288.5963646258.

The spelling of 2139689253 in words is "two billion, one hundred thirty-nine million, six hundred eighty-nine thousand, two hundred fifty-three".