145452552 has 64 divisors (see below), whose sum is σ = 433658880. Its totient is φ = 39749952.

The previous prime is 145452533. The next prime is 145452563. The reversal of 145452552 is 255254541.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14958 + ... + 22685.

It is an arithmetic number, because the mean of its divisors is an integer number (6775920).

Almost surely, 2^145452552 is an apocalyptic number.

145452552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145452552 is an abundant number, since it is smaller than the sum of its proper divisors (288206328).

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

145452552 is a wasteful number, since it uses less digits than its factorization.

145452552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37682 (or 37678 counting only the distinct ones).

The product of its digits is 40000, while the sum is 33.

The square root of 145452552 is about 12060.3711385678. The cubic root of 145452552 is about 525.9047763356.

The spelling of 145452552 in words is "one hundred forty-five million, four hundred fifty-two thousand, five hundred fifty-two".