12480157 has 4 divisors (see below), whose sum is σ = 12666496. Its totient is φ = 12293820.

The previous prime is 12480133. The next prime is 12480161. The reversal of 12480157 is 75108421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75108421 = 2141 ⋅35081.

It is a cyclic number.

It is not a de Polignac number, because 12480157 - 2⁷ = 12480029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12480107) 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, 93069 + ... + 93202.

It is an arithmetic number, because the mean of its divisors is an integer number (3166624).

Almost surely, 2^12480157 is an apocalyptic number.

It is an amenable number.

12480157 is a deficient number, since it is larger than the sum of its proper divisors (186339).

12480157 is an equidigital number, since it uses as much as digits as its factorization.

12480157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186338.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 12480157 is about 3532.7265673980. The cubic root of 12480157 is about 231.9565725789.

Adding to 12480157 its reverse (75108421), we get a palindrome (87588578).

The spelling of 12480157 in words is "twelve million, four hundred eighty thousand, one hundred fifty-seven".