78046151 has 2 divisors, whose sum is σ = 78046152. Its totient is φ = 78046150.

The previous prime is 78046139. The next prime is 78046169. The reversal of 78046151 is 15164087.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78046151 - 2¹⁴ = 78029767 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78046651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39023075 + 39023076.

It is an arithmetic number, because the mean of its divisors is an integer number (39023076).

Almost surely, 2^78046151 is an apocalyptic number.

78046151 is a deficient number, since it is larger than the sum of its proper divisors (1).

78046151 is an equidigital number, since it uses as much as digits as its factorization.

78046151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 78046151 is about 8834.3732658293. The cubic root of 78046151 is about 427.3501197053.

The spelling of 78046151 in words is "seventy-eight million, forty-six thousand, one hundred fifty-one".