151224842 has 4 divisors (see below), whose sum is σ = 226837266. Its totient is φ = 75612420.

The previous prime is 151224833. The next prime is 151224863. The reversal of 151224842 is 248422151.

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., 92717641 + 58507201 = 9629^2 + 7649^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37806209 + ... + 37806212.

Almost surely, 2^151224842 is an apocalyptic number.

151224842 is a deficient number, since it is larger than the sum of its proper divisors (75612424).

151224842 is an equidigital number, since it uses as much as digits as its factorization.

151224842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75612423.

The product of its digits is 5120, while the sum is 29.

The square root of 151224842 is about 12297.3510155643. The cubic root of 151224842 is about 532.7715757854.

Adding to 151224842 its reverse (248422151), we get a palindrome (399646993).

The spelling of 151224842 in words is "one hundred fifty-one million, two hundred twenty-four thousand, eight hundred forty-two".