12149750 has 32 divisors (see below), whose sum is σ = 23744448. Its totient is φ = 4646400.

The previous prime is 12149749. The next prime is 12149771. The reversal of 12149750 is 5794121.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4694 + ... + 6806.

It is an arithmetic number, because the mean of its divisors is an integer number (742014).

Almost surely, 2^12149750 is an apocalyptic number.

12149750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12149750 is a deficient number, since it is larger than the sum of its proper divisors (11594698).

12149750 is a wasteful number, since it uses less digits than its factorization.

12149750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153 (or 2143 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 12149750 is about 3485.6491504453. The cubic root of 12149750 is about 229.8912529389.

The spelling of 12149750 in words is "twelve million, one hundred forty-nine thousand, seven hundred fifty".