12005154235 has 4 divisors (see below), whose sum is σ = 14406185088. Its totient is φ = 9604123384.

The previous prime is 12005154223. The next prime is 12005154241. The reversal of 12005154235 is 53245150021.

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

It is a cyclic number.

It is not a de Polignac number, because 12005154235 - 2⁷ = 12005154107 is a prime.

It is a super-2 number, since 2×12005154235² (a number of 21 digits) contains 22 as substring.

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, 1200515419 + ... + 1200515428.

It is an arithmetic number, because the mean of its divisors is an integer number (3601546272).

Almost surely, 2^12005154235 is an apocalyptic number.

12005154235 is a deficient number, since it is larger than the sum of its proper divisors (2401030853).

12005154235 is an equidigital number, since it uses as much as digits as its factorization.

12005154235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401030852.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 12005154235 in words is "twelve billion, five million, one hundred fifty-four thousand, two hundred thirty-five".