70565123 has 2 divisors, whose sum is σ = 70565124. Its totient is φ = 70565122.

The previous prime is 70565119. The next prime is 70565153. The reversal of 70565123 is 32156507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70565123 - 2² = 70565119 is a prime.

It is not a weakly prime, because it can be changed into another prime (70565153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35282561 + 35282562.

It is an arithmetic number, because the mean of its divisors is an integer number (35282562).

Almost surely, 2^70565123 is an apocalyptic number.

70565123 is a deficient number, since it is larger than the sum of its proper divisors (1).

70565123 is an equidigital number, since it uses as much as digits as its factorization.

70565123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 70565123 is about 8400.3049349414. The cubic root of 70565123 is about 413.2346221240.

The spelling of 70565123 in words is "seventy million, five hundred sixty-five thousand, one hundred twenty-three".