1157972 has 12 divisors (see below), whose sum is σ = 2145780. Its totient is φ = 544896.

The previous prime is 1157969. The next prime is 1157977. The reversal of 1157972 is 2797511.

It can be written as a sum of positive squares in 2 ways, for example, as 913936 + 244036 = 956^2 + 494^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8447 + ... + 8582.

It is an arithmetic number, because the mean of its divisors is an integer number (178815).

2^1157972 is an apocalyptic number.

It is an amenable number.

1157972 is a deficient number, since it is larger than the sum of its proper divisors (987808).

1157972 is a wasteful number, since it uses less digits than its factorization.

1157972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17050 (or 17048 counting only the distinct ones).

The product of its digits is 4410, while the sum is 32.

The square root of 1157972 is about 1076.0910742126. The cubic root of 1157972 is about 105.0104902595.

The spelling of 1157972 in words is "one million, one hundred fifty-seven thousand, nine hundred seventy-two".