70515075 has 12 divisors (see below), whose sum is σ = 116585048. Its totient is φ = 37608000.

The previous prime is 70515047. The next prime is 70515077. The reversal of 70515075 is 57051507.

It is not a de Polignac number, because 70515075 - 2¹⁴ = 70498691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70515077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470026 + ... + 470175.

Almost surely, 2^70515075 is an apocalyptic number.

70515075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

70515075 is a deficient number, since it is larger than the sum of its proper divisors (46069973).

70515075 is a wasteful number, since it uses less digits than its factorization.

70515075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940214 (or 940209 counting only the distinct ones).

The product of its (nonzero) digits is 6125, while the sum is 30.

The square root of 70515075 is about 8397.3254670758. The cubic root of 70515075 is about 413.1369040783.

The spelling of 70515075 in words is "seventy million, five hundred fifteen thousand, seventy-five".