12251970 has 24 divisors (see below), whose sum is σ = 31855356. Its totient is φ = 3267168.

The previous prime is 12251969. The next prime is 12251971. The reversal of 12251970 is 7915221.

It is an interprime number because it is at equal distance from previous prime (12251969) and next prime (12251971).

It can be written as a sum of positive squares in 2 ways, for example, as 11675889 + 576081 = 3417^2 + 759^2 .

It is a super-2 number, since 2×12251970² = 300221537761800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12251971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67977 + ... + 68156.

Almost surely, 2^12251970 is an apocalyptic number.

12251970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12251970 is an abundant number, since it is smaller than the sum of its proper divisors (19603386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12251970 is a wasteful number, since it uses less digits than its factorization.

12251970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136146 (or 136143 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12251970 is about 3500.2814172578. The cubic root of 12251970 is about 230.5341711644.

The spelling of 12251970 in words is "twelve million, two hundred fifty-one thousand, nine hundred seventy".