12145790 has 8 divisors (see below), whose sum is σ = 21862440. Its totient is φ = 4858312.

The previous prime is 12145781. The next prime is 12145801. The reversal of 12145790 is 9754121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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, 607280 + ... + 607299.

It is an arithmetic number, because the mean of its divisors is an integer number (2732805).

Almost surely, 2^12145790 is an apocalyptic number.

12145790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12145790 is a deficient number, since it is larger than the sum of its proper divisors (9716650).

12145790 is a wasteful number, since it uses less digits than its factorization.

12145790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214586.

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

The square root of 12145790 is about 3485.0810607502. The cubic root of 12145790 is about 229.8662738711.

The spelling of 12145790 in words is "twelve million, one hundred forty-five thousand, seven hundred ninety".