145146664 has 24 divisors (see below), whose sum is σ = 294697710. Its totient is φ = 66990144.

The previous prime is 145146641. The next prime is 145146679. The reversal of 145146664 is 466641541.

It can be written as a sum of positive squares in 3 ways, for example, as 68724100 + 76422564 = 8290^2 + 8742^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52327 + ... + 55030.

Almost surely, 2^145146664 is an apocalyptic number.

It is an amenable number.

145146664 is an abundant number, since it is smaller than the sum of its proper divisors (149551046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145146664 is a wasteful number, since it uses less digits than its factorization.

145146664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107389 (or 107372 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 145146664 is about 12047.6829307548. The cubic root of 145146664 is about 525.5358568063.

The spelling of 145146664 in words is "one hundred forty-five million, one hundred forty-six thousand, six hundred sixty-four".