70455019 has 2 divisors, whose sum is σ = 70455020. Its totient is φ = 70455018.

The previous prime is 70455017. The next prime is 70455023. The reversal of 70455019 is 91055407.

It is a weak prime.

It is an emirp because it is prime and its reverse (91055407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70455019 - 2¹ = 70455017 is a prime.

It is a super-2 number, since 2×70455019² = 9927819404580722, which contains 22 as substring.

Together with 70455017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70455017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35227509 + 35227510.

It is an arithmetic number, because the mean of its divisors is an integer number (35227510).

Almost surely, 2^70455019 is an apocalyptic number.

70455019 is a deficient number, since it is larger than the sum of its proper divisors (1).

70455019 is an equidigital number, since it uses as much as digits as its factorization.

70455019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 70455019 is about 8393.7488049143. The cubic root of 70455019 is about 413.0195844981.

The spelling of 70455019 in words is "seventy million, four hundred fifty-five thousand, nineteen".