15434012155 has 4 divisors (see below), whose sum is σ = 18520814592. Its totient is φ = 12347209720.

The previous prime is 15434012149. The next prime is 15434012171. The reversal of 15434012155 is 55121043451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55121043451 = 73 ⋅755082787.

It is not a de Polignac number, because 15434012155 - 2⁹ = 15434011643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543401211 + ... + 1543401220.

It is an arithmetic number, because the mean of its divisors is an integer number (4630203648).

Almost surely, 2^15434012155 is an apocalyptic number.

15434012155 is a deficient number, since it is larger than the sum of its proper divisors (3086802437).

15434012155 is an equidigital number, since it uses as much as digits as its factorization.

15434012155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086802436.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 15434012155 in words is "fifteen billion, four hundred thirty-four million, twelve thousand, one hundred fifty-five".