156342513242 has 8 divisors (see below), whose sum is σ = 248308697556. Its totient is φ = 73572947392.

The previous prime is 156342513241. The next prime is 156342513319. The reversal of 156342513242 is 242315243651.

It can be written as a sum of positive squares in 2 ways, for example, as 147157399321 + 9185113921 = 383611^2 + 95839^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 156342513196 and 156342513205.

It is not an unprimeable number, because it can be changed into a prime (156342513241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2299154573 + ... + 2299154640.

Almost surely, 2^156342513242 is an apocalyptic number.

156342513242 is a deficient number, since it is larger than the sum of its proper divisors (91966184314).

156342513242 is a wasteful number, since it uses less digits than its factorization.

156342513242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4598309232.

The product of its digits is 172800, while the sum is 38.

Adding to 156342513242 its reverse (242315243651), we get a palindrome (398657756893).

The spelling of 156342513242 in words is "one hundred fifty-six billion, three hundred forty-two million, five hundred thirteen thousand, two hundred forty-two".