70942123 has 4 divisors (see below), whose sum is σ = 81076720. Its totient is φ = 60807528.

The previous prime is 70942121. The next prime is 70942159. The reversal of 70942123 is 32124907.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70942123 - 2¹ = 70942121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70942091 and 70942100.

It is not an unprimeable number, because it can be changed into a prime (70942121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5067288 + ... + 5067301.

It is an arithmetic number, because the mean of its divisors is an integer number (20269180).

Almost surely, 2^70942123 is an apocalyptic number.

70942123 is a deficient number, since it is larger than the sum of its proper divisors (10134597).

70942123 is a wasteful number, since it uses less digits than its factorization.

70942123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10134596.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 70942123 is about 8422.7147048918. The cubic root of 70942123 is about 413.9692288113.

The spelling of 70942123 in words is "seventy million, nine hundred forty-two thousand, one hundred twenty-three".