15440005134 has 32 divisors (see below), whose sum is σ = 34316547840. Its totient is φ = 5145854616.

The previous prime is 15440005129. The next prime is 15440005151. The reversal of 15440005134 is 43150004451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 15440005098 and 15440005107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391759 + ... + 429365.

It is an arithmetic number, because the mean of its divisors is an integer number (1072392120).

Almost surely, 2^15440005134 is an apocalyptic number.

15440005134 is an abundant number, since it is smaller than the sum of its proper divisors (18876542706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15440005134 is a wasteful number, since it uses less digits than its factorization.

15440005134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45221 (or 45215 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 15440005134 its reverse (43150004451), we get a palindrome (58590009585).

The spelling of 15440005134 in words is "fifteen billion, four hundred forty million, five thousand, one hundred thirty-four".