156435242 has 4 divisors (see below), whose sum is σ = 234652866. Its totient is φ = 78217620.

The previous prime is 156435221. The next prime is 156435283. The reversal of 156435242 is 242534651.

156435242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 145419481 + 11015761 = 12059^2 + 3319^2 .

It is a junction number, because it is equal to n+sod(n) for n = 156435199 and 156435208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39108809 + ... + 39108812.

Almost surely, 2^156435242 is an apocalyptic number.

156435242 is a deficient number, since it is larger than the sum of its proper divisors (78217624).

156435242 is an equidigital number, since it uses as much as digits as its factorization.

156435242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78217623.

The product of its digits is 28800, while the sum is 32.

The square root of 156435242 is about 12507.4074851665. The cubic root of 156435242 is about 538.8214374042.

Adding to 156435242 its reverse (242534651), we get a palindrome (398969893).

The spelling of 156435242 in words is "one hundred fifty-six million, four hundred thirty-five thousand, two hundred forty-two".