64142485 has 8 divisors (see below), whose sum is σ = 83968416. Its totient is φ = 46649040.

The previous prime is 64142473. The next prime is 64142489. The reversal of 64142485 is 58424146.

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

It is not a de Polignac number, because 64142485 - 2⁵ = 64142453 is a prime.

It is a super-2 number, since 2×64142485² = 8228516763950450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64142485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64142489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583059 + ... + 583168.

It is an arithmetic number, because the mean of its divisors is an integer number (10496052).

Almost surely, 2^64142485 is an apocalyptic number.

It is an amenable number.

64142485 is a deficient number, since it is larger than the sum of its proper divisors (19825931).

64142485 is a wasteful number, since it uses less digits than its factorization.

64142485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166243.

The product of its digits is 30720, while the sum is 34.

The square root of 64142485 is about 8008.9003614729. The cubic root of 64142485 is about 400.2966237315.

The spelling of 64142485 in words is "sixty-four million, one hundred forty-two thousand, four hundred eighty-five".