1145663190 has 320 divisors, whose sum is σ = 3729014784. Its totient is φ = 246903552.

The previous prime is 1145663177. The next prime is 1145663191. The reversal of 1145663190 is 913665411.

1145663190 is a `hidden beast` number, since 1 + 1 + 4 + 566 + 3 + 1 + 90 = 666.

It is a super-2 number, since 2×1145663190² = 2625088289841952200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145663191) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9020907 + ... + 9021033.

Almost surely, 2^1145663190 is an apocalyptic number.

1145663190 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 1145663190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1864507392).

1145663190 is an abundant number, since it is smaller than the sum of its proper divisors (2583351594).

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

1145663190 is a wasteful number, since it uses less digits than its factorization.

1145663190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1145663190 is about 33847.6467424251. The cubic root of 1145663190 is about 1046.3708998146.

The spelling of 1145663190 in words is "one billion, one hundred forty-five million, six hundred sixty-three thousand, one hundred ninety".