145454252 has 24 divisors (see below), whose sum is σ = 265025376. Its totient is φ = 69787008.

The previous prime is 145454209. The next prime is 145454269. The reversal of 145454252 is 252454541.

145454252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×145454252³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4073 + ... + 17535.

It is an arithmetic number, because the mean of its divisors is an integer number (11042724).

Almost surely, 2^145454252 is an apocalyptic number.

It is an amenable number.

145454252 is a deficient number, since it is larger than the sum of its proper divisors (119571124).

145454252 is a wasteful number, since it uses less digits than its factorization.

145454252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13577 (or 13575 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 145454252 is about 12060.4416171217. The cubic root of 145454252 is about 525.9068251930.

The spelling of 145454252 in words is "one hundred forty-five million, four hundred fifty-four thousand, two hundred fifty-two".