1163921250 has 40 divisors (see below), whose sum is σ = 2908881360. Its totient is φ = 310378000.

The previous prime is 1163921249. The next prime is 1163921251. The reversal of 1163921250 is 521293611.

It is an interprime number because it is at equal distance from previous prime (1163921249) and next prime (1163921251).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1163921251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 151440 + ... + 158939.

It is an arithmetic number, because the mean of its divisors is an integer number (72722034).

Almost surely, 2^1163921250 is an apocalyptic number.

1163921250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1163921250 is an abundant number, since it is smaller than the sum of its proper divisors (1744960110).

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

1163921250 is an equidigital number, since it uses as much as digits as its factorization.

1163921250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310404 (or 310389 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1163921250 is about 34116.2900972541. The cubic root of 1163921250 is about 1051.9001872705.

The spelling of 1163921250 in words is "one billion, one hundred sixty-three million, nine hundred twenty-one thousand, two hundred fifty".