145438002 has 12 divisors (see below), whose sum is σ = 315115710. Its totient is φ = 48479328.

The previous prime is 145437979. The next prime is 145438003. The reversal of 145438002 is 200834541.

It can be written as a sum of positive squares in only one way, i.e., 91987281 + 53450721 = 9591^2 + 7311^2 .

It is not an unprimeable number, because it can be changed into a prime (145438003) 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 in 5 ways as a sum of consecutive naturals, for example, 4039927 + ... + 4039962.

Almost surely, 2^145438002 is an apocalyptic number.

145438002 is an abundant number, since it is smaller than the sum of its proper divisors (169677708).

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

145438002 is a wasteful number, since it uses less digits than its factorization.

145438002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8079897 (or 8079894 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 145438002 is about 12059.7679082145. The cubic root of 145438002 is about 525.8872398731.

The spelling of 145438002 in words is "one hundred forty-five million, four hundred thirty-eight thousand, two".