78276148 has 12 divisors (see below), whose sum is σ = 138860260. Its totient is φ = 38601792.

The previous prime is 78276139. The next prime is 78276157. The reversal of 78276148 is 84167287.

It is an interprime number because it is at equal distance from previous prime (78276139) and next prime (78276157).

It can be written as a sum of positive squares in 2 ways, for example, as 60652944 + 17623204 = 7788^2 + 4198^2 .

It is a super-2 number, since 2×78276148² = 12254310691435808, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133743 + ... + 134326.

Almost surely, 2^78276148 is an apocalyptic number.

It is an amenable number.

78276148 is a deficient number, since it is larger than the sum of its proper divisors (60584112).

78276148 is a wasteful number, since it uses less digits than its factorization.

78276148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268146 (or 268144 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 78276148 is about 8847.3808553718. The cubic root of 78276148 is about 427.7694991420.

The spelling of 78276148 in words is "seventy-eight million, two hundred seventy-six thousand, one hundred forty-eight".