158642943 has 16 divisors (see below), whose sum is σ = 215411040. Its totient is φ = 103832064.

The previous prime is 158642941. The next prime is 158642947. The reversal of 158642943 is 349246851.

It is not a de Polignac number, because 158642943 - 2¹ = 158642941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158642895 and 158642904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158642941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49473 + ... + 52581.

It is an arithmetic number, because the mean of its divisors is an integer number (13463190).

Almost surely, 2^158642943 is an apocalyptic number.

158642943 is a deficient number, since it is larger than the sum of its proper divisors (56768097).

158642943 is a wasteful number, since it uses less digits than its factorization.

158642943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418.

The product of its digits is 207360, while the sum is 42.

The square root of 158642943 is about 12595.3540244012. The cubic root of 158642943 is about 541.3443220208.

The spelling of 158642943 in words is "one hundred fifty-eight million, six hundred forty-two thousand, nine hundred forty-three".