152121402242 has 8 divisors (see below), whose sum is σ = 229364394636. Its totient is φ = 75666604032.

The previous prime is 152121402239. The next prime is 152121402319. The reversal of 152121402242 is 242204121251.

It can be written as a sum of positive squares in 2 ways, for example, as 146605517881 + 5515884361 = 382891^2 + 74269^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197048063 + ... + 197048834.

Almost surely, 2^152121402242 is an apocalyptic number.

152121402242 is a deficient number, since it is larger than the sum of its proper divisors (77242992394).

152121402242 is a wasteful number, since it uses less digits than its factorization.

152121402242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394097092.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 152121402242 its reverse (242204121251), we get a palindrome (394325523493).

The spelling of 152121402242 in words is "one hundred fifty-two billion, one hundred twenty-one million, four hundred two thousand, two hundred forty-two".