70157211 has 4 divisors (see below), whose sum is σ = 93542952. Its totient is φ = 46771472.

The previous prime is 70157203. The next prime is 70157221. The reversal of 70157211 is 11275107.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11275107 = 3 ⋅3758369.

It is a cyclic number.

It is not a de Polignac number, because 70157211 - 2³ = 70157203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70157221) by changing a digit.

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, 11692866 + ... + 11692871.

It is an arithmetic number, because the mean of its divisors is an integer number (23385738).

Almost surely, 2^70157211 is an apocalyptic number.

70157211 is a deficient number, since it is larger than the sum of its proper divisors (23385741).

70157211 is a wasteful number, since it uses less digits than its factorization.

70157211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23385740.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 70157211 is about 8375.9901504240. The cubic root of 70157211 is about 412.4368285264.

The spelling of 70157211 in words is "seventy million, one hundred fifty-seven thousand, two hundred eleven".