70142339 has 4 divisors (see below), whose sum is σ = 70168920. Its totient is φ = 70115760.

The previous prime is 70142333. The next prime is 70142381. The reversal of 70142339 is 93324107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70142339 - 2¹⁶ = 70076803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70142333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8834 + ... + 14775.

It is an arithmetic number, because the mean of its divisors is an integer number (17542230).

Almost surely, 2^70142339 is an apocalyptic number.

70142339 is a deficient number, since it is larger than the sum of its proper divisors (26581).

70142339 is a wasteful number, since it uses less digits than its factorization.

70142339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26580.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 70142339 is about 8375.1023277331. The cubic root of 70142339 is about 412.4076835348.

The spelling of 70142339 in words is "seventy million, one hundred forty-two thousand, three hundred thirty-nine".