15971482 has 4 divisors (see below), whose sum is σ = 23957226. Its totient is φ = 7985740.

The previous prime is 15971471. The next prime is 15971513. The reversal of 15971482 is 28417951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28417951 = 73 ⋅389287.

It can be written as a sum of positive squares in only one way, i.e., 15689521 + 281961 = 3961^2 + 531^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992869 + ... + 3992872.

Almost surely, 2^15971482 is an apocalyptic number.

15971482 is a deficient number, since it is larger than the sum of its proper divisors (7985744).

15971482 is an equidigital number, since it uses as much as digits as its factorization.

15971482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985743.

The product of its digits is 20160, while the sum is 37.

The square root of 15971482 is about 3996.4336601525. The cubic root of 15971482 is about 251.8344108255.

The spelling of 15971482 in words is "fifteen million, nine hundred seventy-one thousand, four hundred eighty-two".