12531742 has 8 divisors (see below), whose sum is σ = 18836496. Its totient is φ = 6252912.

The previous prime is 12531709. The next prime is 12531763. The reversal of 12531742 is 24713521.

It is a happy number.

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

It is a super-3 number, since 3×12531742³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5223 + ... + 7234.

It is an arithmetic number, because the mean of its divisors is an integer number (2354562).

Almost surely, 2^12531742 is an apocalyptic number.

12531742 is a deficient number, since it is larger than the sum of its proper divisors (6304754).

12531742 is a wasteful number, since it uses less digits than its factorization.

12531742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12962.

The product of its digits is 1680, while the sum is 25.

The square root of 12531742 is about 3540.0200564404. The cubic root of 12531742 is about 232.2757200508.

The spelling of 12531742 in words is "twelve million, five hundred thirty-one thousand, seven hundred forty-two".