1144157253 has 8 divisors (see below), whose sum is σ = 1566774048. Its totient is φ = 742155984.

The previous prime is 1144157249. The next prime is 1144157279. The reversal of 1144157253 is 3527514411.

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

It is not a de Polignac number, because 1144157253 - 2² = 1144157249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144157243) 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, 5153751 + ... + 5153972.

It is an arithmetic number, because the mean of its divisors is an integer number (195846756).

Almost surely, 2^1144157253 is an apocalyptic number.

It is an amenable number.

1144157253 is a deficient number, since it is larger than the sum of its proper divisors (422616795).

1144157253 is a wasteful number, since it uses less digits than its factorization.

1144157253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10307763.

The product of its digits is 16800, while the sum is 33.

The square root of 1144157253 is about 33825.3936119005. The cubic root of 1144157253 is about 1045.9122252803.

The spelling of 1144157253 in words is "one billion, one hundred forty-four million, one hundred fifty-seven thousand, two hundred fifty-three".