1157572 has 24 divisors (see below), whose sum is σ = 2212056. Its totient is φ = 526848.

The previous prime is 1157557. The next prime is 1157579. The reversal of 1157572 is 2757511.

It can be written as a sum of positive squares in 4 ways, for example, as 42436 + 1115136 = 206^2 + 1056^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1157572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157579) 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, 5778 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (92169).

2^1157572 is an apocalyptic number.

It is an amenable number.

1157572 is a deficient number, since it is larger than the sum of its proper divisors (1054484).

1157572 is a wasteful number, since it uses less digits than its factorization.

1157572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 325 counting only the distinct ones).

The product of its digits is 2450, while the sum is 28.

The square root of 1157572 is about 1075.9052002849. The cubic root of 1157572 is about 104.9983975568.

The spelling of 1157572 in words is "one million, one hundred fifty-seven thousand, five hundred seventy-two".