64742146 has 8 divisors (see below), whose sum is σ = 110986560. Its totient is φ = 27746628.

The previous prime is 64742143. The next prime is 64742147. The reversal of 64742146 is 64124746.

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

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (64742143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2312206 + ... + 2312233.

It is an arithmetic number, because the mean of its divisors is an integer number (13873320).

Almost surely, 2^64742146 is an apocalyptic number.

64742146 is a deficient number, since it is larger than the sum of its proper divisors (46244414).

64742146 is a wasteful number, since it uses less digits than its factorization.

64742146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624448.

The product of its digits is 32256, while the sum is 34.

The square root of 64742146 is about 8046.2504311014. The cubic root of 64742146 is about 401.5401993530.

The spelling of 64742146 in words is "sixty-four million, seven hundred forty-two thousand, one hundred forty-six".