71919054 has 12 divisors (see below), whose sum is σ = 155824656. Its totient is φ = 23973012.

The previous prime is 71919037. The next prime is 71919059. The reversal of 71919054 is 45091917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71919059) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1997734 + ... + 1997769.

It is an arithmetic number, because the mean of its divisors is an integer number (12985388).

Almost surely, 2^71919054 is an apocalyptic number.

71919054 is an abundant number, since it is smaller than the sum of its proper divisors (83905602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71919054 is a wasteful number, since it uses less digits than its factorization.

71919054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995511 (or 3995508 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 71919054 is about 8480.5102440832. The cubic root of 71919054 is about 415.8608038669.

The spelling of 71919054 in words is "seventy-one million, nine hundred nineteen thousand, fifty-four".