70128122 has 8 divisors (see below), whose sum is σ = 107757972. Its totient is φ = 34208800.

The previous prime is 70128109. The next prime is 70128131. The reversal of 70128122 is 22182107.

It can be written as a sum of positive squares in 2 ways, for example, as 67881121 + 2247001 = 8239^2 + 1499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427529 + ... + 427692.

Almost surely, 2^70128122 is an apocalyptic number.

70128122 is a deficient number, since it is larger than the sum of its proper divisors (37629850).

70128122 is a wasteful number, since it uses less digits than its factorization.

70128122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855264.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 70128122 is about 8374.2535189711. The cubic root of 70128122 is about 412.3798183096.

The spelling of 70128122 in words is "seventy million, one hundred twenty-eight thousand, one hundred twenty-two".