78133071 has 8 divisors (see below), whose sum is σ = 110305584. Its totient is φ = 49024640.

The previous prime is 78133063. The next prime is 78133079. The reversal of 78133071 is 17033187.

It is an interprime number because it is at equal distance from previous prime (78133063) and next prime (78133079).

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 78133071 - 2³ = 78133063 is a prime.

It is a super-2 number, since 2×78133071² = 12209553567782082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78133079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765960 + ... + 766061.

It is an arithmetic number, because the mean of its divisors is an integer number (13788198).

Almost surely, 2^78133071 is an apocalyptic number.

78133071 is a deficient number, since it is larger than the sum of its proper divisors (32172513).

78133071 is a wasteful number, since it uses less digits than its factorization.

78133071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532041.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 78133071 is about 8839.2913177471. The cubic root of 78133071 is about 427.5087074592.

The spelling of 78133071 in words is "seventy-eight million, one hundred thirty-three thousand, seventy-one".