68015542 has 8 divisors (see below), whose sum is σ = 116598096. Its totient is φ = 29149512.

The previous prime is 68015503. The next prime is 68015557. The reversal of 68015542 is 24551086.

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

It is a super-2 number, since 2×68015542² = 9252227907107528, which contains 22 as substring.

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, 2429113 + ... + 2429140.

It is an arithmetic number, because the mean of its divisors is an integer number (14574762).

Almost surely, 2^68015542 is an apocalyptic number.

68015542 is a deficient number, since it is larger than the sum of its proper divisors (48582554).

68015542 is a wasteful number, since it uses less digits than its factorization.

68015542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858262.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 68015542 is about 8247.1535695657. The cubic root of 68015542 is about 408.1966044325.

The spelling of 68015542 in words is "sixty-eight million, fifteen thousand, five hundred forty-two".