70134909 has 16 divisors (see below), whose sum is σ = 106008000. Its totient is φ = 40887936.

The previous prime is 70134907. The next prime is 70134913. The reversal of 70134909 is 90943107.

It is not a de Polignac number, because 70134909 - 2¹ = 70134907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70134909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70134901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46584 + ... + 48065.

It is an arithmetic number, because the mean of its divisors is an integer number (6625500).

Almost surely, 2^70134909 is an apocalyptic number.

It is an amenable number.

70134909 is a deficient number, since it is larger than the sum of its proper divisors (35873091).

70134909 is a wasteful number, since it uses less digits than its factorization.

70134909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94684.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 70134909 is about 8374.6587393159. The cubic root of 70134909 is about 412.3931212541.

The spelling of 70134909 in words is "seventy million, one hundred thirty-four thousand, nine hundred nine".