70732141 has 4 divisors (see below), whose sum is σ = 71248572. Its totient is φ = 70215712.

The previous prime is 70732139. The next prime is 70732159. The reversal of 70732141 is 14123707.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29387241 + 41344900 = 5421^2 + 6430^2 .

It is a cyclic number.

It is not a de Polignac number, because 70732141 - 2¹ = 70732139 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 (70732241) 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, 258010 + ... + 258283.

It is an arithmetic number, because the mean of its divisors is an integer number (17812143).

Almost surely, 2^70732141 is an apocalyptic number.

It is an amenable number.

70732141 is a deficient number, since it is larger than the sum of its proper divisors (516431).

70732141 is a wasteful number, since it uses less digits than its factorization.

70732141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516430.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 70732141 is about 8410.2402462712. The cubic root of 70732141 is about 413.5603885315.

Adding to 70732141 its reverse (14123707), we get a palindrome (84855848).

The spelling of 70732141 in words is "seventy million, seven hundred thirty-two thousand, one hundred forty-one".