70013503 has 32 divisors (see below), whose sum is σ = 86169600. Its totient is φ = 56800800.

The previous prime is 70013491. The next prime is 70013507. The reversal of 70013503 is 30531007.

It is not a de Polignac number, because 70013503 - 2¹³ = 70005311 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 (70013507) 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 31 ways as a sum of consecutive naturals, for example, 693153 + ... + 693253.

It is an arithmetic number, because the mean of its divisors is an integer number (2692800).

Almost surely, 2^70013503 is an apocalyptic number.

70013503 is a deficient number, since it is larger than the sum of its proper divisors (16156097).

70013503 is a wasteful number, since it uses less digits than its factorization.

70013503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 70013503 is about 8367.4071850245. The cubic root of 70013503 is about 412.1550281416.

The spelling of 70013503 in words is "seventy million, thirteen thousand, five hundred three".