78275045 has 8 divisors (see below), whose sum is σ = 94507296. Its totient is φ = 62235216.

The previous prime is 78275039. The next prime is 78275051. The reversal of 78275045 is 54057287.

It is an interprime number because it is at equal distance from previous prime (78275039) and next prime (78275051).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78275045 - 2⁶ = 78274981 is a prime.

It is a super-2 number, since 2×78275045² = 12253965339504050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47207 + ... + 48836.

It is an arithmetic number, because the mean of its divisors is an integer number (11813412).

Almost surely, 2^78275045 is an apocalyptic number.

It is an amenable number.

78275045 is a deficient number, since it is larger than the sum of its proper divisors (16232251).

78275045 is a wasteful number, since it uses less digits than its factorization.

78275045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96211.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 78275045 is about 8847.3185203202. The cubic root of 78275045 is about 427.7674898796.

The spelling of 78275045 in words is "seventy-eight million, two hundred seventy-five thousand, forty-five".