70345121 has 8 divisors (see below), whose sum is σ = 87703104. Its totient is φ = 54814320.

The previous prime is 70345111. The next prime is 70345123. The reversal of 70345121 is 12154307.

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

It is not a de Polignac number, because 70345121 - 2⁶ = 70345057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70345123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456710 + ... + 456863.

It is an arithmetic number, because the mean of its divisors is an integer number (10962888).

Almost surely, 2^70345121 is an apocalyptic number.

It is an amenable number.

70345121 is a deficient number, since it is larger than the sum of its proper divisors (17357983).

70345121 is a wasteful number, since it uses less digits than its factorization.

70345121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913591.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 70345121 is about 8387.1998306944. The cubic root of 70345121 is about 412.8047256767.

Adding to 70345121 its reverse (12154307), we get a palindrome (82499428).

The spelling of 70345121 in words is "seventy million, three hundred forty-five thousand, one hundred twenty-one".