10142139 has 16 divisors (see below), whose sum is σ = 15514112. Its totient is φ = 5773248.

The previous prime is 10142131. The next prime is 10142147. The reversal of 10142139 is 93124101.

It is an interprime number because it is at equal distance from previous prime (10142131) and next prime (10142147).

It is not a de Polignac number, because 10142139 - 2³ = 10142131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10142131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5802 + ... + 7344.

It is an arithmetic number, because the mean of its divisors is an integer number (969632).

Almost surely, 2^10142139 is an apocalyptic number.

10142139 is a deficient number, since it is larger than the sum of its proper divisors (5371973).

10142139 is a wasteful number, since it uses less digits than its factorization.

10142139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 10142139 is about 3184.6725106359. The cubic root of 10142139 is about 216.4594344648.

The spelling of 10142139 in words is "ten million, one hundred forty-two thousand, one hundred thirty-nine".