70040123 has 2 divisors, whose sum is σ = 70040124. Its totient is φ = 70040122.

The previous prime is 70040107. The next prime is 70040197. The reversal of 70040123 is 32104007.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70040123 - 2⁴ = 70040107 is a prime.

It is not a weakly prime, because it can be changed into another prime (70040923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35020061 + 35020062.

It is an arithmetic number, because the mean of its divisors is an integer number (35020062).

Almost surely, 2^70040123 is an apocalyptic number.

70040123 is a deficient number, since it is larger than the sum of its proper divisors (1).

70040123 is an equidigital number, since it uses as much as digits as its factorization.

70040123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 70040123 is about 8368.9977297165. The cubic root of 70040123 is about 412.2072570030.

The spelling of 70040123 in words is "seventy million, forty thousand, one hundred twenty-three".