15430015140 has 48 divisors (see below), whose sum is σ = 45477942720. Its totient is φ = 3898108800.

The previous prime is 15430015109. The next prime is 15430015157. The reversal of 15430015140 is 4151003451.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15430015140.

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, 6766411 + ... + 6768690.

It is an arithmetic number, because the mean of its divisors is an integer number (947457140).

Almost surely, 2^15430015140 is an apocalyptic number.

15430015140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15430015140 is an abundant number, since it is smaller than the sum of its proper divisors (30047927580).

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

15430015140 is a wasteful number, since it uses less digits than its factorization.

15430015140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13535132 (or 13535130 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15430015140 its reverse (4151003451), we get a palindrome (19581018591).

The spelling of 15430015140 in words is "fifteen billion, four hundred thirty million, fifteen thousand, one hundred forty".