15105381 has 8 divisors (see below), whose sum is σ = 20196000. Its totient is φ = 10042512.

The previous prime is 15105359. The next prime is 15105383. The reversal of 15105381 is 18350151.

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

It is not a de Polignac number, because 15105381 - 2¹³ = 15097189 is a prime.

It is a super-2 number, since 2×15105381² = 456345070310322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15105383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5631 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (2524500).

Almost surely, 2^15105381 is an apocalyptic number.

It is an amenable number.

15105381 is a deficient number, since it is larger than the sum of its proper divisors (5090619).

15105381 is a wasteful number, since it uses less digits than its factorization.

15105381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13875.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 15105381 is about 3886.5641638856. The cubic root of 15105381 is about 247.1973977533.

The spelling of 15105381 in words is "fifteen million, one hundred five thousand, three hundred eighty-one".