71378254 has 8 divisors (see below), whose sum is σ = 109961208. Its totient is φ = 34724520.

The previous prime is 71378239. The next prime is 71378297. The reversal of 71378254 is 45287317.

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

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 482212 + ... + 482359.

It is an arithmetic number, because the mean of its divisors is an integer number (13745151).

Almost surely, 2^71378254 is an apocalyptic number.

71378254 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

71378254 is a deficient number, since it is larger than the sum of its proper divisors (38582954).

71378254 is a wasteful number, since it uses less digits than its factorization.

71378254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964610.

The product of its digits is 47040, while the sum is 37.

The square root of 71378254 is about 8448.5652036307. The cubic root of 71378254 is about 414.8158160763.

The spelling of 71378254 in words is "seventy-one million, three hundred seventy-eight thousand, two hundred fifty-four".