70243019 has 30 divisors (see below), whose sum is σ = 94091724. Its totient is φ = 51854040.

The previous prime is 70242973. The next prime is 70243021. The reversal of 70243019 is 91034207.

It is not a de Polignac number, because 70243019 - 2¹² = 70238923 is a prime.

It is a super-2 number, since 2×70243019² = 9868163436468722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70243049) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3696992 + ... + 3697010.

Almost surely, 2^70243019 is an apocalyptic number.

70243019 is a deficient number, since it is larger than the sum of its proper divisors (23848705).

70243019 is an frugal number, since it uses more digits than its factorization.

70243019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 70243019 is about 8381.1108452281. The cubic root of 70243019 is about 412.6049079974.

The spelling of 70243019 in words is "seventy million, two hundred forty-three thousand, nineteen".