1151890 has 16 divisors (see below), whose sum is σ = 2092032. Its totient is φ = 456624.

The previous prime is 1151881. The next prime is 1151911. The reversal of 1151890 is 981511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (130752).

2^1151890 is an apocalyptic number.

1151890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151890 is a deficient number, since it is larger than the sum of its proper divisors (940142).

1151890 is a wasteful number, since it uses less digits than its factorization.

1151890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 1151890 is about 1073.2613847521. The cubic root of 1151890 is about 104.8263190701.

The spelling of 1151890 in words is "one million, one hundred fifty-one thousand, eight hundred ninety".