145668148 has 6 divisors (see below), whose sum is σ = 254919266. Its totient is φ = 72834072.

The previous prime is 145668143. The next prime is 145668151. The reversal of 145668148 is 841866541.

It can be written as a sum of positive squares in only one way, i.e., 106254864 + 39413284 = 10308^2 + 6278^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145668143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18208515 + ... + 18208522.

Almost surely, 2^145668148 is an apocalyptic number.

It is an amenable number.

145668148 is a deficient number, since it is larger than the sum of its proper divisors (109251118).

145668148 is a wasteful number, since it uses less digits than its factorization.

145668148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36417041 (or 36417039 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 145668148 is about 12069.3060281029. The cubic root of 145668148 is about 526.1644875847.

The spelling of 145668148 in words is "one hundred forty-five million, six hundred sixty-eight thousand, one hundred forty-eight".