156983849 has 8 divisors (see below), whose sum is σ = 171345792. Its totient is φ = 142637040.

The previous prime is 156983843. The next prime is 156983887. The reversal of 156983849 is 948389651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156983849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 156983849.

It is not an unprimeable number, because it can be changed into a prime (156983843) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39152 + ... + 42974.

It is an arithmetic number, because the mean of its divisors is an integer number (21418224).

Almost surely, 2^156983849 is an apocalyptic number.

It is an amenable number.

156983849 is a deficient number, since it is larger than the sum of its proper divisors (14361943).

156983849 is a wasteful number, since it uses less digits than its factorization.

156983849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7567.

The product of its digits is 1866240, while the sum is 53.

The square root of 156983849 is about 12529.3195745020. The cubic root of 156983849 is about 539.4505717125.

The spelling of 156983849 in words is "one hundred fifty-six million, nine hundred eighty-three thousand, eight hundred forty-nine".