78035149 has 2 divisors, whose sum is σ = 78035150. Its totient is φ = 78035148.

The previous prime is 78035137. The next prime is 78035161. The reversal of 78035149 is 94153087.

It is a balanced prime because it is at equal distance from previous prime (78035137) and next prime (78035161).

It can be written as a sum of positive squares in only one way, i.e., 75168900 + 2866249 = 8670^2 + 1693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78035149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78035119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39017574 + 39017575.

It is an arithmetic number, because the mean of its divisors is an integer number (39017575).

Almost surely, 2^78035149 is an apocalyptic number.

It is an amenable number.

78035149 is a deficient number, since it is larger than the sum of its proper divisors (1).

78035149 is an equidigital number, since it uses as much as digits as its factorization.

78035149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 78035149 is about 8833.7505624735. The cubic root of 78035149 is about 427.3300378823.

The spelling of 78035149 in words is "seventy-eight million, thirty-five thousand, one hundred forty-nine".