70102405 has 8 divisors (see below), whose sum is σ = 84344832. Its totient is φ = 55933968.

The previous prime is 70102399. The next prime is 70102421. The reversal of 70102405 is 50420107.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70102405 - 2⁹ = 70101893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16389 + ... + 20218.

It is an arithmetic number, because the mean of its divisors is an integer number (10543104).

Almost surely, 2^70102405 is an apocalyptic number.

It is an amenable number.

70102405 is a deficient number, since it is larger than the sum of its proper divisors (14242427).

70102405 is a wasteful number, since it uses less digits than its factorization.

70102405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36995.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 70102405 is about 8372.7178980305. The cubic root of 70102405 is about 412.3294035920.

It can be divided in two parts, 70102 and 405, that added together give a palindrome (70507).

The spelling of 70102405 in words is "seventy million, one hundred two thousand, four hundred five".