70955143 has 4 divisors (see below), whose sum is σ = 81091600. Its totient is φ = 60818688.

The previous prime is 70955119. The next prime is 70955147. The reversal of 70955143 is 34155907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34155907 = 17 ⋅2009171.

It is not a de Polignac number, because 70955143 - 2¹³ = 70946951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70955099 and 70955108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70955147) 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, 5068218 + ... + 5068231.

It is an arithmetic number, because the mean of its divisors is an integer number (20272900).

Almost surely, 2^70955143 is an apocalyptic number.

70955143 is a deficient number, since it is larger than the sum of its proper divisors (10136457).

70955143 is a wasteful number, since it uses less digits than its factorization.

70955143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10136456.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 70955143 is about 8423.4875793818. The cubic root of 70955143 is about 413.9945525044.

The spelling of 70955143 in words is "seventy million, nine hundred fifty-five thousand, one hundred forty-three".