70129913 has 8 divisors (see below), whose sum is σ = 84863232. Its totient is φ = 56575296.

The previous prime is 70129909. The next prime is 70129951. The reversal of 70129913 is 31992107.

It is a happy number.

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 70129913 - 2² = 70129909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70129913.

It is not an unprimeable number, because it can be changed into a prime (70129973) 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 7 ways as a sum of consecutive naturals, for example, 294545 + ... + 294782.

It is an arithmetic number, because the mean of its divisors is an integer number (10607904).

Almost surely, 2^70129913 is an apocalyptic number.

It is an amenable number.

70129913 is a deficient number, since it is larger than the sum of its proper divisors (14733319).

70129913 is a wasteful number, since it uses less digits than its factorization.

70129913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589351.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 70129913 is about 8374.3604531928. The cubic root of 70129913 is about 412.3833288650.

The spelling of 70129913 in words is "seventy million, one hundred twenty-nine thousand, nine hundred thirteen".