70122431 has 4 divisors (see below), whose sum is σ = 70208664. Its totient is φ = 70036200.

The previous prime is 70122427. The next prime is 70122439. The reversal of 70122431 is 13422107.

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

It is a cyclic number.

It is not a de Polignac number, because 70122431 - 2² = 70122427 is a prime.

It is a super-2 number, since 2×70122431² = 9834310658699522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70122439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41885 + ... + 43526.

It is an arithmetic number, because the mean of its divisors is an integer number (17552166).

Almost surely, 2^70122431 is an apocalyptic number.

70122431 is a deficient number, since it is larger than the sum of its proper divisors (86233).

70122431 is an equidigital number, since it uses as much as digits as its factorization.

70122431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86232.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 70122431 is about 8373.9137205968. The cubic root of 70122431 is about 412.3686629321.

Adding to 70122431 its reverse (13422107), we get a palindrome (83544538).

It can be divided in two parts, 701 and 22431, that added together give a palindrome (23132).

The spelling of 70122431 in words is "seventy million, one hundred twenty-two thousand, four hundred thirty-one".