70851349 has 4 divisors (see below), whose sum is σ = 71145580. Its totient is φ = 70557120.

The previous prime is 70851343. The next prime is 70851367. The reversal of 70851349 is 94315807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94315807 = 59 ⋅1598573.

It can be written as a sum of positive squares in 2 ways, for example, as 65124900 + 5726449 = 8070^2 + 2393^2 .

It is a cyclic number.

It is not a de Polignac number, because 70851349 - 2¹⁵ = 70818581 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 (70851343) 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, 146754 + ... + 147235.

It is an arithmetic number, because the mean of its divisors is an integer number (17786395).

Almost surely, 2^70851349 is an apocalyptic number.

It is an amenable number.

70851349 is a deficient number, since it is larger than the sum of its proper divisors (294231).

70851349 is a wasteful number, since it uses less digits than its factorization.

70851349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294230.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 70851349 is about 8417.3243373414. The cubic root of 70851349 is about 413.7925886616.

The spelling of 70851349 in words is "seventy million, eight hundred fifty-one thousand, three hundred forty-nine".