1157385 has 32 divisors (see below), whose sum is σ = 2027520. Its totient is φ = 561600.

The previous prime is 1157381. The next prime is 1157393. The reversal of 1157385 is 5837511.

It is not a de Polignac number, because 1157385 - 2² = 1157381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8770 + ... + 8900.

It is an arithmetic number, because the mean of its divisors is an integer number (63360).

2^1157385 is an apocalyptic number.

1157385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1157385 is a deficient number, since it is larger than the sum of its proper divisors (870135).

1157385 is a wasteful number, since it uses less digits than its factorization.

1157385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189.

The product of its digits is 4200, while the sum is 30.

The square root of 1157385 is about 1075.8182932075. The cubic root of 1157385 is about 104.9927432627.

The spelling of 1157385 in words is "one million, one hundred fifty-seven thousand, three hundred eighty-five".