70021130 has 32 divisors (see below), whose sum is σ = 133949376. Its totient is φ = 26262784.

The previous prime is 70021129. The next prime is 70021163. The reversal of 70021130 is 3112007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58397 + ... + 59583.

It is an arithmetic number, because the mean of its divisors is an integer number (4185918).

Almost surely, 2^70021130 is an apocalyptic number.

70021130 is a deficient number, since it is larger than the sum of its proper divisors (63928246).

70021130 is a wasteful number, since it uses less digits than its factorization.

70021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 70021130 is about 8367.8629290877. The cubic root of 70021130 is about 412.1699937893.

Adding to 70021130 its reverse (3112007), we get a palindrome (73133137).

The spelling of 70021130 in words is "seventy million, twenty-one thousand, one hundred thirty".