12542434 has 8 divisors (see below), whose sum is σ = 19078848. Its totient is φ = 6182820.

The previous prime is 12542423. The next prime is 12542437. The reversal of 12542434 is 43424521.

12542434 = 52² + 53² + ... + 335².

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12542399 and 12542408.

It is not an unprimeable number, because it can be changed into a prime (12542437) 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, 44022 + ... + 44305.

It is an arithmetic number, because the mean of its divisors is an integer number (2384856).

Almost surely, 2^12542434 is an apocalyptic number.

12542434 is a deficient number, since it is larger than the sum of its proper divisors (6536414).

12542434 is an equidigital number, since it uses as much as digits as its factorization.

12542434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88400.

The product of its digits is 3840, while the sum is 25.

The square root of 12542434 is about 3541.5298953983. The cubic root of 12542434 is about 232.3417599792.

Adding to 12542434 its reverse (43424521), we get a palindrome (55966955).

The spelling of 12542434 in words is "twelve million, five hundred forty-two thousand, four hundred thirty-four".