70143553 has 2 divisors, whose sum is σ = 70143554. Its totient is φ = 70143552.

The previous prime is 70143551. The next prime is 70143587. The reversal of 70143553 is 35534107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47789569 + 22353984 = 6913^2 + 4728^2 .

It is a cyclic number.

It is not a de Polignac number, because 70143553 - 2¹ = 70143551 is a prime.

Together with 70143551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70143551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35071776 + 35071777.

It is an arithmetic number, because the mean of its divisors is an integer number (35071777).

Almost surely, 2^70143553 is an apocalyptic number.

It is an amenable number.

70143553 is a deficient number, since it is larger than the sum of its proper divisors (1).

70143553 is an equidigital number, since it uses as much as digits as its factorization.

70143553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 70143553 is about 8375.1748041459. The cubic root of 70143553 is about 412.4100627922.

The spelling of 70143553 in words is "seventy million, one hundred forty-three thousand, five hundred fifty-three".