7142522 has 4 divisors (see below), whose sum is σ = 10713786. Its totient is φ = 3571260.

The previous prime is 7142521. The next prime is 7142557. The reversal of 7142522 is 2252417.

It is a happy number.

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., 7134241 + 8281 = 2671^2 + 91^2 .

It is not an unprimeable number, because it can be changed into a prime (7142521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1785629 + ... + 1785632.

Almost surely, 2^7142522 is an apocalyptic number.

7142522 is a deficient number, since it is larger than the sum of its proper divisors (3571264).

7142522 is a wasteful number, since it uses less digits than its factorization.

7142522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571263.

The product of its digits is 1120, while the sum is 23.

The square root of 7142522 is about 2672.5497189014. The cubic root of 7142522 is about 192.5826664683.

Adding to 7142522 its reverse (2252417), we get a palindrome (9394939).

The spelling of 7142522 in words is "seven million, one hundred forty-two thousand, five hundred twenty-two".