43142542 has 16 divisors (see below), whose sum is σ = 65520000. Its totient is φ = 21304440.

The previous prime is 43142531. The next prime is 43142543. The reversal of 43142542 is 24524134.

It is a happy number.

It is a super-2 number, since 2×43142542² = 3722557860443528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43142543) 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, 86209 + ... + 86707.

It is an arithmetic number, because the mean of its divisors is an integer number (4095000).

Almost surely, 2^43142542 is an apocalyptic number.

43142542 is a deficient number, since it is larger than the sum of its proper divisors (22377458).

43142542 is a wasteful number, since it uses less digits than its factorization.

43142542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951.

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

The square root of 43142542 is about 6568.2982575398. The cubic root of 43142542 is about 350.7264964073.

Adding to 43142542 its reverse (24524134), we get a palindrome (67666676).

The spelling of 43142542 in words is "forty-three million, one hundred forty-two thousand, five hundred forty-two".