145451044 has 6 divisors (see below), whose sum is σ = 254539334. Its totient is φ = 72725520.

The previous prime is 145451021. The next prime is 145451077. The reversal of 145451044 is 440154541.

It can be written as a sum of positive squares in only one way, i.e., 108993600 + 36457444 = 10440^2 + 6038^2 .

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 as a sum of consecutive naturals, namely, 18181377 + ... + 18181384.

Almost surely, 2^145451044 is an apocalyptic number.

It is an amenable number.

145451044 is a deficient number, since it is larger than the sum of its proper divisors (109088290).

145451044 is a wasteful number, since it uses less digits than its factorization.

145451044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36362765 (or 36362763 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 145451044 is about 12060.3086196001. The cubic root of 145451044 is about 525.9029588651.

The spelling of 145451044 in words is "one hundred forty-five million, four hundred fifty-one thousand, forty-four".