78113275 has 12 divisors (see below), whose sum is σ = 101959000. Its totient is φ = 59201280.

The previous prime is 78113261. The next prime is 78113279. The reversal of 78113275 is 57231187.

It is not a de Polignac number, because 78113275 - 2⁹ = 78112763 is a prime.

It is a super-2 number, since 2×78113275² = 12203367462451250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78113275.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78113279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81750 + ... + 82699.

Almost surely, 2^78113275 is an apocalyptic number.

78113275 is a deficient number, since it is larger than the sum of its proper divisors (23845725).

78113275 is a wasteful number, since it uses less digits than its factorization.

78113275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164478 (or 164473 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 78113275 is about 8838.1714737835. The cubic root of 78113275 is about 427.4725995000.

It can be divided in two parts, 781132 and 75, that multiplied together give a triangular number (58584900 = T₁₀₈₂₄).

The spelling of 78113275 in words is "seventy-eight million, one hundred thirteen thousand, two hundred seventy-five".