1157345 has 16 divisors (see below), whose sum is σ = 1626240. Its totient is φ = 774144.

The previous prime is 1157341. The next prime is 1157357. The reversal of 1157345 is 5437511.

It is not a de Polignac number, because 1157345 - 2² = 1157341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1157341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1121 + ... + 1889.

It is an arithmetic number, because the mean of its divisors is an integer number (101640).

2^1157345 is an apocalyptic number.

It is an amenable number.

1157345 is a deficient number, since it is larger than the sum of its proper divisors (468895).

1157345 is an equidigital number, since it uses as much as digits as its factorization.

1157345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824.

The product of its digits is 2100, while the sum is 26.

The square root of 1157345 is about 1075.7997025469. The cubic root of 1157345 is about 104.9915337089.

The spelling of 1157345 in words is "one million, one hundred fifty-seven thousand, three hundred forty-five".