157642043 has 8 divisors (see below), whose sum is σ = 169922928. Its totient is φ = 145383264.

The previous prime is 157642039. The next prime is 157642049. The reversal of 157642043 is 340246751.

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

It is not a de Polignac number, because 157642043 - 2² = 157642039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157642049) 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, 11180 + ... + 20982.

It is an arithmetic number, because the mean of its divisors is an integer number (21240366).

Almost surely, 2^157642043 is an apocalyptic number.

157642043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

157642043 is a deficient number, since it is larger than the sum of its proper divisors (12280885).

157642043 is a wasteful number, since it uses less digits than its factorization.

157642043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 157642043 is about 12555.5582512288. The cubic root of 157642043 is about 540.2034475746.

Adding to 157642043 its reverse (340246751), we get a palindrome (497888794).

The spelling of 157642043 in words is "one hundred fifty-seven million, six hundred forty-two thousand, forty-three".