1121750690 has 32 divisors (see below), whose sum is σ = 2138209920. Its totient is φ = 422527104.

The previous prime is 1121750689. The next prime is 1121750723. The reversal of 1121750690 is 960571211.

It is a super-2 number, since 2×1121750690² = 2516649221030952200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14054 + ... + 49406.

It is an arithmetic number, because the mean of its divisors is an integer number (66819060).

Almost surely, 2^1121750690 is an apocalyptic number.

1121750690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121750690 is a deficient number, since it is larger than the sum of its proper divisors (1016459230).

1121750690 is a wasteful number, since it uses less digits than its factorization.

1121750690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35546.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 1121750690 is about 33492.5467828292. The cubic root of 1121750690 is about 1039.0396367472.

The spelling of 1121750690 in words is "one billion, one hundred twenty-one million, seven hundred fifty thousand, six hundred ninety".