1274253153 has 8 divisors (see below), whose sum is σ = 1772874048. Its totient is φ = 812567184.

The previous prime is 1274253137. The next prime is 1274253161. The reversal of 1274253153 is 3513524721.

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

It is not a de Polignac number, because 1274253153 - 2⁴ = 1274253137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1274255153) 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, 9233650 + ... + 9233787.

It is an arithmetic number, because the mean of its divisors is an integer number (221609256).

Almost surely, 2^1274253153 is an apocalyptic number.

It is an amenable number.

1274253153 is a deficient number, since it is larger than the sum of its proper divisors (498620895).

1274253153 is a wasteful number, since it uses less digits than its factorization.

1274253153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18467463.

The product of its digits is 25200, while the sum is 33.

The square root of 1274253153 is about 35696.6826609981. The cubic root of 1274253153 is about 1084.1396771875.

Adding to 1274253153 its reverse (3513524721), we get a palindrome (4787777874).

It can be divided in two parts, 1274253 and 153, that added together give a triangular number (1274406 = T₁₅₉₆).

The spelling of 1274253153 in words is "one billion, two hundred seventy-four million, two hundred fifty-three thousand, one hundred fifty-three".