70102001 has 4 divisors (see below), whose sum is σ = 73791600. Its totient is φ = 66412404.

The previous prime is 70101991. The next prime is 70102003. The reversal of 70102001 is 10020107.

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 not a de Polignac number, because 70102001 - 2⁶ = 70101937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70102003) 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, 1844771 + ... + 1844808.

It is an arithmetic number, because the mean of its divisors is an integer number (18447900).

Almost surely, 2^70102001 is an apocalyptic number.

It is an amenable number.

70102001 is a deficient number, since it is larger than the sum of its proper divisors (3689599).

70102001 is a wasteful number, since it uses less digits than its factorization.

70102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689598.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 70102001 is about 8372.6937720187. The cubic root of 70102001 is about 412.3286115060.

Adding to 70102001 its reverse (10020107), we get a palindrome (80122108).

The spelling of 70102001 in words is "seventy million, one hundred two thousand, one".