70481091 has 16 divisors (see below), whose sum is σ = 96798240. Its totient is φ = 45588480.

The previous prime is 70481083. The next prime is 70481093. The reversal of 70481091 is 19018407.

It is not a de Polignac number, because 70481091 - 2³ = 70481083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70481093) 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 15 ways as a sum of consecutive naturals, for example, 22255 + ... + 25223.

It is an arithmetic number, because the mean of its divisors is an integer number (6049890).

Almost surely, 2^70481091 is an apocalyptic number.

70481091 is a deficient number, since it is larger than the sum of its proper divisors (26317149).

70481091 is a wasteful number, since it uses less digits than its factorization.

70481091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 70481091 is about 8395.3017217965. The cubic root of 70481091 is about 413.0705244158.

Adding to 70481091 its reverse (19018407), we get a palindrome (89499498).

The spelling of 70481091 in words is "seventy million, four hundred eighty-one thousand, ninety-one".