78046123 has 2 divisors, whose sum is σ = 78046124. Its totient is φ = 78046122.

The previous prime is 78046109. The next prime is 78046139. The reversal of 78046123 is 32164087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78046123 - 2²⁵ = 44491691 is a prime.

It is a super-2 number, since 2×78046123² = 12182394630662258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78046183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39023061 + 39023062.

It is an arithmetic number, because the mean of its divisors is an integer number (39023062).

Almost surely, 2^78046123 is an apocalyptic number.

78046123 is a deficient number, since it is larger than the sum of its proper divisors (1).

78046123 is an equidigital number, since it uses as much as digits as its factorization.

78046123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 78046123 is about 8834.3716811101. The cubic root of 78046123 is about 427.3500685996.

The spelling of 78046123 in words is "seventy-eight million, forty-six thousand, one hundred twenty-three".