156943342 has 4 divisors (see below), whose sum is σ = 235415016. Its totient is φ = 78471670.

The previous prime is 156943333. The next prime is 156943343. The reversal of 156943342 is 243349651.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156943343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39235834 + ... + 39235837.

It is an arithmetic number, because the mean of its divisors is an integer number (58853754).

Almost surely, 2^156943342 is an apocalyptic number.

156943342 is a deficient number, since it is larger than the sum of its proper divisors (78471674).

156943342 is an equidigital number, since it uses as much as digits as its factorization.

156943342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78471673.

The product of its digits is 77760, while the sum is 37.

The square root of 156943342 is about 12527.7029817920. The cubic root of 156943342 is about 539.4041690535.

The spelling of 156943342 in words is "one hundred fifty-six million, nine hundred forty-three thousand, three hundred forty-two".