1126661990 has 8 divisors (see below), whose sum is σ = 2027991600. Its totient is φ = 450664792.

The previous prime is 1126661971. The next prime is 1126662023. The reversal of 1126661990 is 991666211.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56333090 + ... + 56333109.

It is an arithmetic number, because the mean of its divisors is an integer number (253498950).

Almost surely, 2^1126661990 is an apocalyptic number.

1126661990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1126661990 is a deficient number, since it is larger than the sum of its proper divisors (901329610).

1126661990 is a wasteful number, since it uses less digits than its factorization.

1126661990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112666206.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 1126661990 is about 33565.7860030121. The cubic root of 1126661990 is about 1040.5538193037.

The spelling of 1126661990 in words is "one billion, one hundred twenty-six million, six hundred sixty-one thousand, nine hundred ninety".