70157093 has 4 divisors (see below), whose sum is σ = 70880460. Its totient is φ = 69433728.

The previous prime is 70157089. The next prime is 70157099. The reversal of 70157093 is 39075107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39075107 = 373 ⋅104759.

It can be written as a sum of positive squares in 2 ways, for example, as 48469444 + 21687649 = 6962^2 + 4657^2 .

It is a cyclic number.

It is not a de Polignac number, because 70157093 - 2² = 70157089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70157099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361538 + ... + 361731.

It is an arithmetic number, because the mean of its divisors is an integer number (17720115).

Almost surely, 2^70157093 is an apocalyptic number.

It is an amenable number.

70157093 is a deficient number, since it is larger than the sum of its proper divisors (723367).

70157093 is an equidigital number, since it uses as much as digits as its factorization.

70157093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723366.

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 70157093 is about 8375.9831064777. The cubic root of 70157093 is about 412.4365972954.

The spelling of 70157093 in words is "seventy million, one hundred fifty-seven thousand, ninety-three".