70189451 has 2 divisors, whose sum is σ = 70189452. Its totient is φ = 70189450.

The previous prime is 70189433. The next prime is 70189463. The reversal of 70189451 is 15498107.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70189451 - 2¹⁴ = 70173067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70189151) 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, 35094725 + 35094726.

It is an arithmetic number, because the mean of its divisors is an integer number (35094726).

Almost surely, 2^70189451 is an apocalyptic number.

70189451 is a deficient number, since it is larger than the sum of its proper divisors (1).

70189451 is an equidigital number, since it uses as much as digits as its factorization.

70189451 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 70189451 is about 8377.9144779593. The cubic root of 70189451 is about 412.4999958372.

The spelling of 70189451 in words is "seventy million, one hundred eighty-nine thousand, four hundred fifty-one".