71542068 has 48 divisors (see below), whose sum is σ = 189241920. Its totient is φ = 20853504.

The previous prime is 71542063. The next prime is 71542073. The reversal of 71542068 is 86024517.

It is an interprime number because it is at equal distance from previous prime (71542063) and next prime (71542073).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71542063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9105 + ... + 15032.

It is an arithmetic number, because the mean of its divisors is an integer number (3942540).

Almost surely, 2^71542068 is an apocalyptic number.

71542068 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

71542068 is an abundant number, since it is smaller than the sum of its proper divisors (117699852).

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

71542068 is a wasteful number, since it uses less digits than its factorization.

71542068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24176 (or 24174 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 71542068 is about 8458.2544298454. The cubic root of 71542068 is about 415.1329094785.

The spelling of 71542068 in words is "seventy-one million, five hundred forty-two thousand, sixty-eight".