151121442 has 8 divisors (see below), whose sum is σ = 302242896. Its totient is φ = 50373812.

The previous prime is 151121429. The next prime is 151121447. The reversal of 151121442 is 244121151.

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

151121442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (151121447) by changing a digit.

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, 12593448 + ... + 12593459.

It is an arithmetic number, because the mean of its divisors is an integer number (37780362).

Almost surely, 2^151121442 is an apocalyptic number.

151121442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151121442 is a wasteful number, since it uses less digits than its factorization.

151121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25186912.

The product of its digits is 320, while the sum is 21.

The square root of 151121442 is about 12293.1461392111. The cubic root of 151121442 is about 532.6501205611.

Adding to 151121442 its reverse (244121151), we get a palindrome (395242593).

The spelling of 151121442 in words is "one hundred fifty-one million, one hundred twenty-one thousand, four hundred forty-two".