70516019 has 4 divisors (see below), whose sum is σ = 80589744. Its totient is φ = 60442296.

The previous prime is 70516013. The next prime is 70516021. The reversal of 70516019 is 91061507.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91061507 = 89 ⋅1023163.

It is a cyclic number.

It is not a de Polignac number, because 70516019 - 2⁴ = 70516003 is a prime.

It is a super-2 number, since 2×70516019² = 9945017871216722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70515982 and 70516000.

It is not an unprimeable number, because it can be changed into a prime (70516013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5036852 + ... + 5036865.

It is an arithmetic number, because the mean of its divisors is an integer number (20147436).

Almost surely, 2^70516019 is an apocalyptic number.

70516019 is a deficient number, since it is larger than the sum of its proper divisors (10073725).

70516019 is a wasteful number, since it uses less digits than its factorization.

70516019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10073724.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 70516019 is about 8397.3816752604. The cubic root of 70516019 is about 413.1387476533.

The spelling of 70516019 in words is "seventy million, five hundred sixteen thousand, nineteen".