145081672 has 16 divisors (see below), whose sum is σ = 288030060. Its totient is φ = 68273664.

The previous prime is 145081661. The next prime is 145081679. The reversal of 145081672 is 276180541.

It can be written as a sum of positive squares in 2 ways, for example, as 124233316 + 20848356 = 11146^2 + 4566^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (145081679) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 533253 + ... + 533524.

Almost surely, 2^145081672 is an apocalyptic number.

It is an amenable number.

145081672 is a deficient number, since it is larger than the sum of its proper divisors (142948388).

145081672 is a wasteful number, since it uses less digits than its factorization.

145081672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066800 (or 1066796 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 145081672 is about 12044.9853466079. The cubic root of 145081672 is about 525.4574057539.

The spelling of 145081672 in words is "one hundred forty-five million, eighty-one thousand, six hundred seventy-two".