70146451 has 2 divisors, whose sum is σ = 70146452. Its totient is φ = 70146450.

The previous prime is 70146443. The next prime is 70146463. The reversal of 70146451 is 15464107.

It is a weak prime.

It is an emirp because it is prime and its reverse (15464107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70146451 - 2³ = 70146443 is a prime.

It is not a weakly prime, because it can be changed into another prime (70146431) 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, 35073225 + 35073226.

It is an arithmetic number, because the mean of its divisors is an integer number (35073226).

Almost surely, 2^70146451 is an apocalyptic number.

70146451 is a deficient number, since it is larger than the sum of its proper divisors (1).

70146451 is an equidigital number, since it uses as much as digits as its factorization.

70146451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 70146451 is about 8375.3478136732. The cubic root of 70146451 is about 412.4157423254.

The spelling of 70146451 in words is "seventy million, one hundred forty-six thousand, four hundred fifty-one".