10142738 has 4 divisors (see below), whose sum is σ = 15214110. Its totient is φ = 5071368.

The previous prime is 10142687. The next prime is 10142753. The reversal of 10142738 is 83724101.

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., 7823209 + 2319529 = 2797^2 + 1523^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535683 + ... + 2535686.

Almost surely, 2^10142738 is an apocalyptic number.

10142738 is a deficient number, since it is larger than the sum of its proper divisors (5071372).

10142738 is an equidigital number, since it uses as much as digits as its factorization.

10142738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071371.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 10142738 is about 3184.7665534541. The cubic root of 10142738 is about 216.4636957831.

Adding to 10142738 its reverse (83724101), we get a palindrome (93866839).

The spelling of 10142738 in words is "ten million, one hundred forty-two thousand, seven hundred thirty-eight".