145457452 has 24 divisors (see below), whose sum is σ = 291172896. Its totient is φ = 62283648.

The previous prime is 145457449. The next prime is 145457461. The reversal of 145457452 is 254754541.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53928 + ... + 56560.

It is an arithmetic number, because the mean of its divisors is an integer number (12132204).

Almost surely, 2^145457452 is an apocalyptic number.

It is an amenable number.

145457452 is an abundant number, since it is smaller than the sum of its proper divisors (145715444).

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

145457452 is a wasteful number, since it uses less digits than its factorization.

145457452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617 (or 4615 counting only the distinct ones).

The product of its digits is 112000, while the sum is 37.

The square root of 145457452 is about 12060.5742815174. The cubic root of 145457452 is about 525.9106818226.

The spelling of 145457452 in words is "one hundred forty-five million, four hundred fifty-seven thousand, four hundred fifty-two".