15143420434 has 16 divisors (see below), whose sum is σ = 23092361280. Its totient is φ = 7446018960.

The previous prime is 15143420377. The next prime is 15143420441. The reversal of 15143420434 is 43402434151.

It is a junction number, because it is equal to n+sod(n) for n = 15143420396 and 15143420405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754177 + ... + 773995.

It is an arithmetic number, because the mean of its divisors is an integer number (1443272580).

Almost surely, 2^15143420434 is an apocalyptic number.

15143420434 is a deficient number, since it is larger than the sum of its proper divisors (7948940846).

15143420434 is a wasteful number, since it uses less digits than its factorization.

15143420434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26145.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 15143420434 its reverse (43402434151), we get a palindrome (58545854585).

The spelling of 15143420434 in words is "fifteen billion, one hundred forty-three million, four hundred twenty thousand, four hundred thirty-four".