15381116 has 6 divisors (see below), whose sum is σ = 26916960. Its totient is φ = 7690556.

The previous prime is 15381101. The next prime is 15381137. The reversal of 15381116 is 61118351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922636 + ... + 1922643.

It is an arithmetic number, because the mean of its divisors is an integer number (4486160).

Almost surely, 2^15381116 is an apocalyptic number.

It is an amenable number.

15381116 is a deficient number, since it is larger than the sum of its proper divisors (11535844).

15381116 is a wasteful number, since it uses less digits than its factorization.

15381116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845283 (or 3845281 counting only the distinct ones).

The product of its digits is 720, while the sum is 26.

The square root of 15381116 is about 3921.8765916331. The cubic root of 15381116 is about 248.6924585977.

Adding to 15381116 its reverse (61118351), we get a palindrome (76499467).

The spelling of 15381116 in words is "fifteen million, three hundred eighty-one thousand, one hundred sixteen".