1155944250 has 64 divisors (see below), whose sum is σ = 3205837440. Its totient is φ = 308250000.

The previous prime is 1155944239. The next prime is 1155944261. The reversal of 1155944250 is 524495511.

1155944250 is a `hidden beast` number, since 1 + 15 + 594 + 4 + 2 + 50 = 666.

1155944250 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1155944239) and next prime (1155944261).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78876 + ... + 92375.

It is an arithmetic number, because the mean of its divisors is an integer number (50091210).

Almost surely, 2^1155944250 is an apocalyptic number.

1155944250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155944250 is an abundant number, since it is smaller than the sum of its proper divisors (2049893190).

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

1155944250 is a wasteful number, since it uses less digits than its factorization.

1155944250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171277 (or 171261 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 1155944250 is about 33999.1801371739. The cubic root of 1155944250 is about 1049.4915906029.

The spelling of 1155944250 in words is "one billion, one hundred fifty-five million, nine hundred forty-four thousand, two hundred fifty".