70198451 has 2 divisors, whose sum is σ = 70198452. Its totient is φ = 70198450.

The previous prime is 70198441. The next prime is 70198459. The reversal of 70198451 is 15489107.

It is a strong prime.

It is an emirp because it is prime and its reverse (15489107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70198451 - 2¹⁰ = 70197427 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70198459) 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 as a sum of consecutive naturals, namely, 35099225 + 35099226.

It is an arithmetic number, because the mean of its divisors is an integer number (35099226).

Almost surely, 2^70198451 is an apocalyptic number.

70198451 is a deficient number, since it is larger than the sum of its proper divisors (1).

70198451 is an equidigital number, since it uses as much as digits as its factorization.

70198451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 70198451 is about 8378.4515872564. The cubic root of 70198451 is about 412.5176259380.

The spelling of 70198451 in words is "seventy million, one hundred ninety-eight thousand, four hundred fifty-one".