145090225928 has 36 divisors (see below), whose sum is σ = 274323459165. Its totient is φ = 71942325568.

The previous prime is 145090225921. The next prime is 145090225961. The reversal of 145090225928 is 829522090541.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 143973195844 + 1117030084 = 379438^2 + 33422^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=269342.

It is a super-2 number, since 2×145090225928² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145090225921) 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 8 ways as a sum of consecutive naturals, for example, 147598925 + ... + 147599907.

Almost surely, 2^145090225928 is an apocalyptic number.

It is an amenable number.

145090225928 is a deficient number, since it is larger than the sum of its proper divisors (129233233237).

145090225928 is an frugal number, since it uses more digits than its factorization.

145090225928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 145090225928 in words is "one hundred forty-five billion, ninety million, two hundred twenty-five thousand, nine hundred twenty-eight".