42151322 has 4 divisors (see below), whose sum is σ = 63226986. Its totient is φ = 21075660.

The previous prime is 42151261. The next prime is 42151337. The reversal of 42151322 is 22315124.

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., 34703881 + 7447441 = 5891^2 + 2729^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42151294 and 42151303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10537829 + ... + 10537832.

Almost surely, 2^42151322 is an apocalyptic number.

42151322 is a deficient number, since it is larger than the sum of its proper divisors (21075664).

42151322 is a wasteful number, since it uses less digits than its factorization.

42151322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21075663.

The product of its digits is 480, while the sum is 20.

The square root of 42151322 is about 6492.4049473211. The cubic root of 42151322 is about 348.0196238989.

Adding to 42151322 its reverse (22315124), we get a palindrome (64466446).

The spelling of 42151322 in words is "forty-two million, one hundred fifty-one thousand, three hundred twenty-two".