1157090 has 32 divisors (see below), whose sum is σ = 2320704. Its totient is φ = 411840.

The previous prime is 1157077. The next prime is 1157099. The reversal of 1157090 is 907511.

It is not an unprimeable number, because it can be changed into a prime (1157099) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7292 + ... + 7448.

It is an arithmetic number, because the mean of its divisors is an integer number (72522).

2^1157090 is an apocalyptic number.

1157090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157090 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1157090 is a wasteful number, since it uses less digits than its factorization.

1157090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 1157090 is about 1075.6811795323. The cubic root of 1157090 is about 104.9838221485.

The spelling of 1157090 in words is "one million, one hundred fifty-seven thousand, ninety".