70000142 has 16 divisors (see below), whose sum is σ = 114339600. Its totient is φ = 32014080.

The previous prime is 70000141. The next prime is 70000157. The reversal of 70000142 is 24100007.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70000141) 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 7 ways as a sum of consecutive naturals, for example, 30659 + ... + 32862.

It is an arithmetic number, because the mean of its divisors is an integer number (7146225).

Almost surely, 2^70000142 is an apocalyptic number.

70000142 is a deficient number, since it is larger than the sum of its proper divisors (44339458).

70000142 is a wasteful number, since it uses less digits than its factorization.

70000142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63571.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 70000142 is about 8366.6087514596. The cubic root of 70000142 is about 412.1288086581.

Adding to 70000142 its reverse (24100007), we get a palindrome (94100149).

The spelling of 70000142 in words is "seventy million, one hundred forty-two", and thus it is an aban number.