70157223 has 6 divisors (see below), whose sum is σ = 101338224. Its totient is φ = 46771476.

The previous prime is 70157221. The next prime is 70157231. The reversal of 70157223 is 32275107.

70157223 is a `hidden beast` number, since 70 + 1 + 572 + 23 = 666.

It is not a de Polignac number, because 70157223 - 2¹ = 70157221 is a prime.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 3897615 + ... + 3897632.

It is an arithmetic number, because the mean of its divisors is an integer number (16889704).

Almost surely, 2^70157223 is an apocalyptic number.

70157223 is a deficient number, since it is larger than the sum of its proper divisors (31181001).

70157223 is a wasteful number, since it uses less digits than its factorization.

70157223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795253 (or 7795250 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 70157223 is about 8375.9908667572. The cubic root of 70157223 is about 412.4368520414.

The spelling of 70157223 in words is "seventy million, one hundred fifty-seven thousand, two hundred twenty-three".