12251090 has 8 divisors (see below), whose sum is σ = 22051980. Its totient is φ = 4900432.

The previous prime is 12251089. The next prime is 12251093. The reversal of 12251090 is 9015221.

It can be written as a sum of positive squares in 2 ways, for example, as 12187081 + 64009 = 3491^2 + 253^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12251093) 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, 612545 + ... + 612564.

Almost surely, 2^12251090 is an apocalyptic number.

12251090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12251090 is a deficient number, since it is larger than the sum of its proper divisors (9800890).

12251090 is a wasteful number, since it uses less digits than its factorization.

12251090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225116.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 12251090 is about 3500.1557108220. The cubic root of 12251090 is about 230.5286516458.

The spelling of 12251090 in words is "twelve million, two hundred fifty-one thousand, ninety".