12152742 has 64 divisors (see below), whose sum is σ = 29729280. Its totient is φ = 3234816.

The previous prime is 12152689. The next prime is 12152753. The reversal of 12152742 is 24725121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77328 + ... + 77484.

It is an arithmetic number, because the mean of its divisors is an integer number (464520).

Almost surely, 2^12152742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12152742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14864640).

12152742 is an abundant number, since it is smaller than the sum of its proper divisors (17576538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12152742 is a wasteful number, since it uses less digits than its factorization.

12152742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285.

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

The square root of 12152742 is about 3486.0783123734. The cubic root of 12152742 is about 229.9101224129.

Adding to 12152742 its reverse (24725121), we get a palindrome (36877863).

The spelling of 12152742 in words is "twelve million, one hundred fifty-two thousand, seven hundred forty-two".