145541452 has 12 divisors (see below), whose sum is σ = 291082960. Its totient is φ = 62374896.

The previous prime is 145541449. The next prime is 145541477. The reversal of 145541452 is 254145541.

It is a happy number.

145541452 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2598927 + ... + 2598982.

Almost surely, 2^145541452 is an apocalyptic number.

It is an amenable number.

145541452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145541452 is a wasteful number, since it uses less digits than its factorization.

145541452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5197920 (or 5197918 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 145541452 is about 12064.0562001343. The cubic root of 145541452 is about 526.0118981247.

Adding to 145541452 its reverse (254145541), we get a palindrome (399686993).

The spelling of 145541452 in words is "one hundred forty-five million, five hundred forty-one thousand, four hundred fifty-two".