12157837 has 4 divisors (see below), whose sum is σ = 12253696. Its totient is φ = 12061980.

The previous prime is 12157801. The next prime is 12157841. The reversal of 12157837 is 73875121.

12157837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12157837 - 2¹⁹ = 11633549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47739 + ... + 47992.

It is an arithmetic number, because the mean of its divisors is an integer number (3063424).

Almost surely, 2^12157837 is an apocalyptic number.

It is an amenable number.

12157837 is a deficient number, since it is larger than the sum of its proper divisors (95859).

12157837 is an equidigital number, since it uses as much as digits as its factorization.

12157837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95858.

The product of its digits is 11760, while the sum is 34.

The square root of 12157837 is about 3486.8089996442. The cubic root of 12157837 is about 229.9422476296.

The spelling of 12157837 in words is "twelve million, one hundred fifty-seven thousand, eight hundred thirty-seven".