1145082690 has 256 divisors, whose sum is σ = 3421440000. Its totient is φ = 271289088.

The previous prime is 1145082683. The next prime is 1145082721. The reversal of 1145082690 is 962805411.

It is a super-2 number, since 2×1145082690² = 2622428733875272200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6397021 + ... + 6397199.

It is an arithmetic number, because the mean of its divisors is an integer number (13365000).

Almost surely, 2^1145082690 is an apocalyptic number.

1145082690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145082690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1710720000).

1145082690 is an abundant number, since it is smaller than the sum of its proper divisors (2276357310).

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

1145082690 is a wasteful number, since it uses less digits than its factorization.

1145082690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1145082690 is about 33839.0704659570. The cubic root of 1145082690 is about 1046.1941402070.

The spelling of 1145082690 in words is "one billion, one hundred forty-five million, eighty-two thousand, six hundred ninety".