1182516990 has 16 divisors (see below), whose sum is σ = 2838040848. Its totient is φ = 315337856.

The previous prime is 1182516967. The next prime is 1182516997. The reversal of 1182516990 is 996152811.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1182516997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19708587 + ... + 19708646.

It is an arithmetic number, because the mean of its divisors is an integer number (177377553).

Almost surely, 2^1182516990 is an apocalyptic number.

1182516990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1182516990 is an abundant number, since it is smaller than the sum of its proper divisors (1655523858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1182516990 is a wasteful number, since it uses less digits than its factorization.

1182516990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39417243.

The product of its (nonzero) digits is 38880, while the sum is 42.

The square root of 1182516990 is about 34387.7447646687. The cubic root of 1182516990 is about 1057.4726158036.

The spelling of 1182516990 in words is "one billion, one hundred eighty-two million, five hundred sixteen thousand, nine hundred ninety".