15381134 has 4 divisors (see below), whose sum is σ = 23071704. Its totient is φ = 7690566.

The previous prime is 15381101. The next prime is 15381137. The reversal of 15381134 is 43118351.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15381137) by changing a digit.

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, 3845282 + ... + 3845285.

It is an arithmetic number, because the mean of its divisors is an integer number (5767926).

Almost surely, 2^15381134 is an apocalyptic number.

15381134 is a deficient number, since it is larger than the sum of its proper divisors (7690570).

15381134 is an equidigital number, since it uses as much as digits as its factorization.

15381134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7690569.

The product of its digits is 1440, while the sum is 26.

The square root of 15381134 is about 3921.8788864523. The cubic root of 15381134 is about 248.6925556098.

Adding to 15381134 its reverse (43118351), we get a palindrome (58499485).

The spelling of 15381134 in words is "fifteen million, three hundred eighty-one thousand, one hundred thirty-four".