1157225 has 12 divisors (see below), whose sum is σ = 1471260. Its totient is φ = 902400.

The previous prime is 1157213. The next prime is 1157227. The reversal of 1157225 is 5227511.

1157225 = T₇₁ + T₇₂ + ... + T₁₉₃.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 444889 + 712336 = 667^2 + 844^2 .

It is not a de Polignac number, because 1157225 - 2⁴ = 1157209 is a prime.

It is a hoax number, since the sum of its digits (23) 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 1157225.

It is not an unprimeable number, because it can be changed into a prime (1157227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (122605).

2^1157225 is an apocalyptic number.

It is an amenable number.

1157225 is a deficient number, since it is larger than the sum of its proper divisors (314035).

1157225 is a wasteful number, since it uses less digits than its factorization.

1157225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180 (or 1175 counting only the distinct ones).

The product of its digits is 700, while the sum is 23.

The square root of 1157225 is about 1075.7439286373. The cubic root of 1157225 is about 104.9879048804.

The spelling of 1157225 in words is "one million, one hundred fifty-seven thousand, two hundred twenty-five".