146738666 has 32 divisors (see below), whose sum is σ = 239034240. Its totient is φ = 67350976.

The previous prime is 146738663. The next prime is 146738671. The reversal of 146738666 is 666837641.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 146738666.

It is not an unprimeable number, because it can be changed into a prime (146738663) 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, 422705 + ... + 423051.

It is an arithmetic number, because the mean of its divisors is an integer number (7469820).

Almost surely, 2^146738666 is an apocalyptic number.

146738666 is a deficient number, since it is larger than the sum of its proper divisors (92295574).

146738666 is a wasteful number, since it uses less digits than its factorization.

146738666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its digits is 870912, while the sum is 47.

The square root of 146738666 is about 12113.5736263086. The cubic root of 146738666 is about 527.4502739077.

The spelling of 146738666 in words is "one hundred forty-six million, seven hundred thirty-eight thousand, six hundred sixty-six".