1151890146 has 40 divisors (see below), whose sum is σ = 2815735824. Its totient is φ = 349057080.

The previous prime is 1151890087. The next prime is 1151890151. The reversal of 1151890146 is 6410981511.

It is a happy number.

1151890146 is a `hidden beast` number, since 11 + 518 + 90 + 1 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1151890146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 321420 + ... + 324983.

Almost surely, 2^1151890146 is an apocalyptic number.

1151890146 is an abundant number, since it is smaller than the sum of its proper divisors (1663845678).

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

1151890146 is a wasteful number, since it uses less digits than its factorization.

1151890146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646428 (or 646419 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 1151890146 is about 33939.5071561153. The cubic root of 1151890146 is about 1048.2632349895.

The spelling of 1151890146 in words is "one billion, one hundred fifty-one million, eight hundred ninety thousand, one hundred forty-six".