1254439253 has 8 divisors (see below), whose sum is σ = 1270790400. Its totient is φ = 1238176368.

The previous prime is 1254439243. The next prime is 1254439271. The reversal of 1254439253 is 3529344521.

It is a happy number.

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 1254439253 - 2⁴ = 1254439237 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 (1254439243) 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, 6788 + ... + 50546.

It is an arithmetic number, because the mean of its divisors is an integer number (158848800).

Almost surely, 2^1254439253 is an apocalyptic number.

It is an amenable number.

1254439253 is a deficient number, since it is larger than the sum of its proper divisors (16351147).

1254439253 is a wasteful number, since it uses less digits than its factorization.

1254439253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44131.

The product of its digits is 129600, while the sum is 38.

The square root of 1254439253 is about 35418.0639363588. The cubic root of 1254439253 is about 1078.4910491466.

The spelling of 1254439253 in words is "one billion, two hundred fifty-four million, four hundred thirty-nine thousand, two hundred fifty-three".