12500149 has 4 divisors (see below), whose sum is σ = 12507264. Its totient is φ = 12493036.

The previous prime is 12500101. The next prime is 12500177. The reversal of 12500149 is 94100521.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12500149 - 2¹⁹ = 11975861 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 (12500549) 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, 1194 + ... + 5140.

It is an arithmetic number, because the mean of its divisors is an integer number (3126816).

Almost surely, 2^12500149 is an apocalyptic number.

It is an amenable number.

12500149 is a deficient number, since it is larger than the sum of its proper divisors (7115).

12500149 is an equidigital number, since it uses as much as digits as its factorization.

12500149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12500149 is about 3535.5549776520. The cubic root of 12500149 is about 232.0803638060.

The spelling of 12500149 in words is "twelve million, five hundred thousand, one hundred forty-nine".