70223481 has 12 divisors (see below), whose sum is σ = 107400852. Its totient is φ = 44061696.

The previous prime is 70223479. The next prime is 70223509. The reversal of 70223481 is 18432207.

It can be written as a sum of positive squares in 2 ways, for example, as 23765625 + 46457856 = 4875^2 + 6816^2 .

It is not a de Polignac number, because 70223481 - 2¹ = 70223479 is a prime.

It is a super-2 number, since 2×70223481² = 9862674567514722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70223081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229336 + ... + 229641.

It is an arithmetic number, because the mean of its divisors is an integer number (8950071).

Almost surely, 2^70223481 is an apocalyptic number.

It is an amenable number.

70223481 is a deficient number, since it is larger than the sum of its proper divisors (37177371).

70223481 is a wasteful number, since it uses less digits than its factorization.

70223481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459000 (or 458997 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 70223481 is about 8379.9451668850. The cubic root of 70223481 is about 412.5666492857.

Adding to 70223481 its reverse (18432207), we get a palindrome (88655688).

The spelling of 70223481 in words is "seventy million, two hundred twenty-three thousand, four hundred eighty-one".