1157272 has 8 divisors (see below), whose sum is σ = 2169900. Its totient is φ = 578632.

The previous prime is 1157263. The next prime is 1157279. The reversal of 1157272 is 2727511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72322 + ... + 72337.

2^1157272 is an apocalyptic number.

It is an amenable number.

1157272 is a deficient number, since it is larger than the sum of its proper divisors (1012628).

1157272 is a wasteful number, since it uses less digits than its factorization.

1157272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144665 (or 144661 counting only the distinct ones).

The product of its digits is 980, while the sum is 25.

The square root of 1157272 is about 1075.7657737630. The cubic root of 1157272 is about 104.9893262015.

The spelling of 1157272 in words is "one million, one hundred fifty-seven thousand, two hundred seventy-two".