70543141 has 4 divisors (see below), whose sum is σ = 70740000. Its totient is φ = 70346284.

The previous prime is 70543069. The next prime is 70543157. The reversal of 70543141 is 14134507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14134507 = 131 ⋅107897.

It is a cyclic number.

It is not a de Polignac number, because 70543141 - 2²⁵ = 36988709 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 (70543741) 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, 97891 + ... + 98608.

It is an arithmetic number, because the mean of its divisors is an integer number (17685000).

Almost surely, 2^70543141 is an apocalyptic number.

It is an amenable number.

70543141 is a deficient number, since it is larger than the sum of its proper divisors (196859).

70543141 is a wasteful number, since it uses less digits than its factorization.

70543141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196858.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 70543141 is about 8398.9964281454. The cubic root of 70543141 is about 413.1917082572.

Adding to 70543141 its reverse (14134507), we get a palindrome (84677648).

The spelling of 70543141 in words is "seventy million, five hundred forty-three thousand, one hundred forty-one".