70142013 has 12 divisors (see below), whose sum is σ = 101761660. Its totient is φ = 46555776.

The previous prime is 70142011. The next prime is 70142029. The reversal of 70142013 is 31024107.

It can be written as a sum of positive squares in 2 ways, for example, as 58568409 + 11573604 = 7653^2 + 3402^2 .

It is not a de Polignac number, because 70142013 - 2¹ = 70142011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70142011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14956 + ... + 19077.

Almost surely, 2^70142013 is an apocalyptic number.

It is an amenable number.

70142013 is a deficient number, since it is larger than the sum of its proper divisors (31619647).

70142013 is a wasteful number, since it uses less digits than its factorization.

70142013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34268 (or 34265 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 70142013 is about 8375.0828652617. The cubic root of 70142013 is about 412.4070446192.

The spelling of 70142013 in words is "seventy million, one hundred forty-two thousand, thirteen".