15381082 has 4 divisors (see below), whose sum is σ = 23071626. Its totient is φ = 7690540.

The previous prime is 15381061. The next prime is 15381101. The reversal of 15381082 is 28018351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28018351 = 499 ⋅56149.

It can be written as a sum of positive squares in only one way, i.e., 8300161 + 7080921 = 2881^2 + 2661^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15381082.

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 as a sum of consecutive naturals, namely, 3845269 + ... + 3845272.

Almost surely, 2^15381082 is an apocalyptic number.

15381082 is a deficient number, since it is larger than the sum of its proper divisors (7690544).

15381082 is an equidigital number, since it uses as much as digits as its factorization.

15381082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7690543.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 15381082 is about 3921.8722569712. The cubic root of 15381082 is about 248.6922753524.

The spelling of 15381082 in words is "fifteen million, three hundred eighty-one thousand, eighty-two".