70455919 has 2 divisors, whose sum is σ = 70455920. Its totient is φ = 70455918.

The previous prime is 70455899. The next prime is 70455929. The reversal of 70455919 is 91955407.

It is a strong prime.

It is an emirp because it is prime and its reverse (91955407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70455919 - 2¹¹ = 70453871 is a prime.

It is a super-2 number, since 2×70455919² = 9928073044269122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70455929) 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, 35227959 + 35227960.

It is an arithmetic number, because the mean of its divisors is an integer number (35227960).

Almost surely, 2^70455919 is an apocalyptic number.

70455919 is a deficient number, since it is larger than the sum of its proper divisors (1).

70455919 is an equidigital number, since it uses as much as digits as its factorization.

70455919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 70455919 is about 8393.8024160687. The cubic root of 70455919 is about 413.0213431428.

The spelling of 70455919 in words is "seventy million, four hundred fifty-five thousand, nine hundred nineteen".