64541542 has 32 divisors (see below), whose sum is σ = 111771072. Its totient is φ = 27713664.

The previous prime is 64541509. The next prime is 64541549. The reversal of 64541542 is 24514546.

It is a happy number.

It is a super-2 number, since 2×64541542² = 8331221287475528, which contains 22 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64541549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20668 + ... + 23584.

It is an arithmetic number, because the mean of its divisors is an integer number (3492846).

Almost surely, 2^64541542 is an apocalyptic number.

64541542 is a deficient number, since it is larger than the sum of its proper divisors (47229530).

64541542 is a wasteful number, since it uses less digits than its factorization.

64541542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992.

The product of its digits is 19200, while the sum is 31.

The square root of 64541542 is about 8033.7750777577. The cubic root of 64541542 is about 401.1250452165.

The spelling of 64541542 in words is "sixty-four million, five hundred forty-one thousand, five hundred forty-two".