12157300 has 36 divisors (see below), whose sum is σ = 26827276. Its totient is φ = 4780800.

The previous prime is 12157273. The next prime is 12157303. The reversal of 12157300 is 375121.

It can be written as a sum of positive squares in 6 ways, for example, as 1227664 + 10929636 = 1108^2 + 3306^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5104 + ... + 7096.

Almost surely, 2^12157300 is an apocalyptic number.

12157300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12157300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13413638).

12157300 is an abundant number, since it is smaller than the sum of its proper divisors (14669976).

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

12157300 is a wasteful number, since it uses less digits than its factorization.

12157300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2061 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 12157300 is about 3486.7319942892. The cubic root of 12157300 is about 229.9388621369.

It can be divided in two parts, 1215 and 7300, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 12157300 in words is "twelve million, one hundred fifty-seven thousand, three hundred".