70409159 has 4 divisors (see below), whose sum is σ = 70456680. Its totient is φ = 70361640.

The previous prime is 70409147. The next prime is 70409191. The reversal of 70409159 is 95190407.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70409159 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 (70409659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21464 + ... + 24525.

It is an arithmetic number, because the mean of its divisors is an integer number (17614170).

Almost surely, 2^70409159 is an apocalyptic number.

70409159 is a deficient number, since it is larger than the sum of its proper divisors (47521).

70409159 is a wasteful number, since it uses less digits than its factorization.

70409159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47520.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 70409159 is about 8391.0165653513. The cubic root of 70409159 is about 412.9299519469.

The spelling of 70409159 in words is "seventy million, four hundred nine thousand, one hundred fifty-nine".