145355452 has 12 divisors (see below), whose sum is σ = 277496856. Its totient is φ = 66070640.

The previous prime is 145355449. The next prime is 145355459. The reversal of 145355452 is 254553541.

It is a super-2 number, since 2×145355452² = 42256414852248608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145355459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1651723 + ... + 1651810.

It is an arithmetic number, because the mean of its divisors is an integer number (23124738).

Almost surely, 2^145355452 is an apocalyptic number.

It is an amenable number.

145355452 is a deficient number, since it is larger than the sum of its proper divisors (132141404).

145355452 is a wasteful number, since it uses less digits than its factorization.

145355452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303548 (or 3303546 counting only the distinct ones).

The product of its digits is 60000, while the sum is 34.

The square root of 145355452 is about 12056.3448855779. The cubic root of 145355452 is about 525.7877239118.

The spelling of 145355452 in words is "one hundred forty-five million, three hundred fifty-five thousand, four hundred fifty-two".