1157387 has 8 divisors (see below), whose sum is σ = 1443072. Its totient is φ = 901800.

The previous prime is 1157381. The next prime is 1157393. The reversal of 1157387 is 7837511.

It is an interprime number because it is at equal distance from previous prime (1157381) and next prime (1157393).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1157387 - 2⁸ = 1157131 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7439 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (180384).

2^1157387 is an apocalyptic number.

1157387 is a deficient number, since it is larger than the sum of its proper divisors (285685).

1157387 is a wasteful number, since it uses less digits than its factorization.

1157387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15049.

The product of its digits is 5880, while the sum is 32.

The square root of 1157387 is about 1075.8192227321. The cubic root of 1157387 is about 104.9928037396.

The spelling of 1157387 in words is "one million, one hundred fifty-seven thousand, three hundred eighty-seven".