1373678253 has 6 divisors (see below), whose sum is σ = 1984201934. Its totient is φ = 915785496.

The previous prime is 1373678249. The next prime is 1373678261. The reversal of 1373678253 is 3528763731.

1373678253 is a `hidden beast` number, since 1 + 37 + 367 + 8 + 253 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1208118564 + 165559689 = 34758^2 + 12867^2 .

It is not a de Polignac number, because 1373678253 - 2² = 1373678249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1373678199 and 1373678208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373678213) 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, 76315450 + ... + 76315467.

Almost surely, 2^1373678253 is an apocalyptic number.

It is an amenable number.

1373678253 is a deficient number, since it is larger than the sum of its proper divisors (610523681).

1373678253 is a wasteful number, since it uses less digits than its factorization.

1373678253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152630923 (or 152630920 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 1373678253 is about 37063.1657174613. The cubic root of 1373678253 is about 1111.6336232951.

The spelling of 1373678253 in words is "one billion, three hundred seventy-three million, six hundred seventy-eight thousand, two hundred fifty-three".