43142157 has 24 divisors (see below), whose sum is σ = 64022400. Its totient is φ = 27984768.

The previous prime is 43142123. The next prime is 43142167. The reversal of 43142157 is 75124134.

It is not a de Polignac number, because 43142157 - 2¹¹ = 43140109 is a prime.

It is a super-2 number, since 2×43142157² = 3722491421225298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43142157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43142167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59644 + ... + 60362.

It is an arithmetic number, because the mean of its divisors is an integer number (2667600).

Almost surely, 2^43142157 is an apocalyptic number.

It is an amenable number.

43142157 is a deficient number, since it is larger than the sum of its proper divisors (20880243).

43142157 is a wasteful number, since it uses less digits than its factorization.

43142157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 894 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 43142157 is about 6568.2689500355. The cubic root of 43142157 is about 350.7254531207.

The spelling of 43142157 in words is "forty-three million, one hundred forty-two thousand, one hundred fifty-seven".