15161983 has 4 divisors (see below), whose sum is σ = 15684840. Its totient is φ = 14639128.

The previous prime is 15161969. The next prime is 15161987. The reversal of 15161983 is 38916151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38916151 = 53 ⋅734267.

It is a cyclic number.

It is not a de Polignac number, because 15161983 - 2¹³ = 15153791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15161987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261385 + ... + 261442.

It is an arithmetic number, because the mean of its divisors is an integer number (3921210).

Almost surely, 2^15161983 is an apocalyptic number.

15161983 is a deficient number, since it is larger than the sum of its proper divisors (522857).

15161983 is an equidigital number, since it uses as much as digits as its factorization.

15161983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522856.

The product of its digits is 6480, while the sum is 34.

The square root of 15161983 is about 3893.8391081297. The cubic root of 15161983 is about 247.5057741060.

It can be divided in two parts, 1 and 5161983, that added together give a square (5161984 = 2272²).

The spelling of 15161983 in words is "fifteen million, one hundred sixty-one thousand, nine hundred eighty-three".