12401457 has 8 divisors (see below), whose sum is σ = 17068800. Its totient is φ = 8000880.

The previous prime is 12401447. The next prime is 12401489. The reversal of 12401457 is 75410421.

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

It is not a de Polignac number, because 12401457 - 2¹⁴ = 12385073 is a prime.

It is a super-2 number, since 2×12401457² = 307592271445698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12401437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66582 + ... + 66767.

It is an arithmetic number, because the mean of its divisors is an integer number (2133600).

Almost surely, 2^12401457 is an apocalyptic number.

It is an amenable number.

12401457 is a deficient number, since it is larger than the sum of its proper divisors (4667343).

12401457 is a wasteful number, since it uses less digits than its factorization.

12401457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133383.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 12401457 is about 3521.5702463532. The cubic root of 12401457 is about 231.4679705713.

Adding to 12401457 its reverse (75410421), we get a palindrome (87811878).

The spelling of 12401457 in words is "twelve million, four hundred one thousand, four hundred fifty-seven".