12154039 has 2 divisors, whose sum is σ = 12154040. Its totient is φ = 12154038.

The previous prime is 12154033. The next prime is 12154057. The reversal of 12154039 is 93045121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12154039 - 2²³ = 3765431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12154033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6077019 + 6077020.

It is an arithmetic number, because the mean of its divisors is an integer number (6077020).

Almost surely, 2^12154039 is an apocalyptic number.

12154039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12154039 is an equidigital number, since it uses as much as digits as its factorization.

12154039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12154039 is about 3486.2643330648. The cubic root of 12154039 is about 229.9183011657.

The spelling of 12154039 in words is "twelve million, one hundred fifty-four thousand, thirty-nine".