151706242 has 8 divisors (see below), whose sum is σ = 229812732. Its totient is φ = 75102000.

The previous prime is 151706239. The next prime is 151706251. The reversal of 151706242 is 242607151.

It can be written as a sum of positive squares in 2 ways, for example, as 142348761 + 9357481 = 11931^2 + 3059^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 151706242.

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 in 3 ways as a sum of consecutive naturals, for example, 375309 + ... + 375712.

Almost surely, 2^151706242 is an apocalyptic number.

151706242 is a deficient number, since it is larger than the sum of its proper divisors (78106490).

151706242 is a wasteful number, since it uses less digits than its factorization.

151706242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751124.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 151706242 is about 12316.9087842689. The cubic root of 151706242 is about 533.3363078827.

Subtracting 151706242 from its reverse (242607151), we obtain a palindrome (90900909).

It can be divided in two parts, 15170 and 6242, that added together give a palindrome (21412).

The spelling of 151706242 in words is "one hundred fifty-one million, seven hundred six thousand, two hundred forty-two".