70512901 has 4 divisors (see below), whose sum is σ = 70591552. Its totient is φ = 70434252.

The previous prime is 70512853. The next prime is 70512913. The reversal of 70512901 is 10921507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70512901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70512931) 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, 37965 + ... + 39778.

It is an arithmetic number, because the mean of its divisors is an integer number (17647888).

Almost surely, 2^70512901 is an apocalyptic number.

It is an amenable number.

70512901 is a deficient number, since it is larger than the sum of its proper divisors (78651).

70512901 is an equidigital number, since it uses as much as digits as its factorization.

70512901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78650.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 70512901 is about 8397.1960201010. The cubic root of 70512901 is about 413.1326583249.

The spelling of 70512901 in words is "seventy million, five hundred twelve thousand, nine hundred one".