70491241 has 4 divisors (see below), whose sum is σ = 72765184. Its totient is φ = 68217300.

The previous prime is 70491229. The next prime is 70491247. The reversal of 70491241 is 14219407.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70491241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70491247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136925 + ... + 1136986.

It is an arithmetic number, because the mean of its divisors is an integer number (18191296).

Almost surely, 2^70491241 is an apocalyptic number.

It is an amenable number.

70491241 is a deficient number, since it is larger than the sum of its proper divisors (2273943).

70491241 is a wasteful number, since it uses less digits than its factorization.

70491241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273942.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 70491241 is about 8395.9062048120. The cubic root of 70491241 is about 413.0903522614.

The spelling of 70491241 in words is "seventy million, four hundred ninety-one thousand, two hundred forty-one".