12401530 has 8 divisors (see below), whose sum is σ = 22322772. Its totient is φ = 4960608.

The previous prime is 12401507. The next prime is 12401533. The reversal of 12401530 is 3510421.

It can be written as a sum of positive squares in 2 ways, for example, as 11607649 + 793881 = 3407^2 + 891^2 .

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 (12401533) 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, 620067 + ... + 620086.

Almost surely, 2^12401530 is an apocalyptic number.

12401530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12401530 is a deficient number, since it is larger than the sum of its proper divisors (9921242).

12401530 is a wasteful number, since it uses less digits than its factorization.

12401530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240160.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12401530 is about 3521.5806110325. The cubic root of 12401530 is about 231.4684247419.

Adding to 12401530 its reverse (3510421), we get a palindrome (15911951).

The spelling of 12401530 in words is "twelve million, four hundred one thousand, five hundred thirty".