1157042 has 8 divisors (see below), whose sum is σ = 1795500. Its totient is φ = 558544.

The previous prime is 1157033. The next prime is 1157053. The reversal of 1157042 is 2407511.

It can be written as a sum of positive squares in 2 ways, for example, as 1104601 + 52441 = 1051^2 + 229^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9917 + ... + 10032.

2^1157042 is an apocalyptic number.

1157042 is a deficient number, since it is larger than the sum of its proper divisors (638458).

1157042 is a wasteful number, since it uses less digits than its factorization.

1157042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19980.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1157042 is about 1075.6588678573. The cubic root of 1157042 is about 104.9823704340.

The spelling of 1157042 in words is "one million, one hundred fifty-seven thousand, forty-two".