70282481 has 4 divisors (see below), whose sum is σ = 70670964. Its totient is φ = 69894000.

The previous prime is 70282477. The next prime is 70282483. The reversal of 70282481 is 18428207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18428207 = 7 ⋅2632601.

It can be written as a sum of positive squares in 2 ways, for example, as 409600 + 69872881 = 640^2 + 8359^2 .

It is a cyclic number.

It is not a de Polignac number, because 70282481 - 2² = 70282477 is a prime.

It is a super-2 number, since 2×70282481² = 9879254271030722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70282483) 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, 193970 + ... + 194331.

It is an arithmetic number, because the mean of its divisors is an integer number (17667741).

Almost surely, 2^70282481 is an apocalyptic number.

It is an amenable number.

70282481 is a deficient number, since it is larger than the sum of its proper divisors (388483).

70282481 is a wasteful number, since it uses less digits than its factorization.

70282481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388482.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 70282481 is about 8383.4647372074. The cubic root of 70282481 is about 412.6821596446.

The spelling of 70282481 in words is "seventy million, two hundred eighty-two thousand, four hundred eighty-one".