1461995156 has 12 divisors (see below), whose sum is σ = 2561940192. Its totient is φ = 730012248.

The previous prime is 1461995149. The next prime is 1461995167. The reversal of 1461995156 is 6515991641.

It is a self number, because there is not a number n which added to its sum of digits gives 1461995156.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 242990 + ... + 248933.

It is an arithmetic number, because the mean of its divisors is an integer number (213495016).

Almost surely, 2^1461995156 is an apocalyptic number.

It is an amenable number.

1461995156 is a deficient number, since it is larger than the sum of its proper divisors (1099945036).

1461995156 is a wasteful number, since it uses less digits than its factorization.

1461995156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492670 (or 492668 counting only the distinct ones).

The product of its digits is 291600, while the sum is 47.

The square root of 1461995156 is about 38236.0452452918. The cubic root of 1461995156 is about 1134.9637166172.

The spelling of 1461995156 in words is "one billion, four hundred sixty-one million, nine hundred ninety-five thousand, one hundred fifty-six".