10142722 has 4 divisors (see below), whose sum is σ = 15214086. Its totient is φ = 5071360.

The previous prime is 10142687. The next prime is 10142753. The reversal of 10142722 is 22724101.

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., 7187761 + 2954961 = 2681^2 + 1719^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10142722.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535679 + ... + 2535682.

Almost surely, 2^10142722 is an apocalyptic number.

10142722 is a deficient number, since it is larger than the sum of its proper divisors (5071364).

10142722 is an equidigital number, since it uses as much as digits as its factorization.

10142722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071363.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 10142722 is about 3184.7640414951. The cubic root of 10142722 is about 216.4635819604.

Adding to 10142722 its reverse (22724101), we get a palindrome (32866823).

The spelling of 10142722 in words is "ten million, one hundred forty-two thousand, seven hundred twenty-two".