145243464 has 32 divisors (see below), whose sum is σ = 365148000. Its totient is φ = 48142592.

The previous prime is 145243447. The next prime is 145243477. The reversal of 145243464 is 464342541.

It is a happy number.

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, 12609 + ... + 21200.

It is an arithmetic number, because the mean of its divisors is an integer number (11410875).

Almost surely, 2^145243464 is an apocalyptic number.

It is an amenable number.

145243464 is an abundant number, since it is smaller than the sum of its proper divisors (219904536).

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

145243464 is a wasteful number, since it uses less digits than its factorization.

145243464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33997 (or 33993 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 145243464 is about 12051.6996311724. The cubic root of 145243464 is about 525.6526595048.

The spelling of 145243464 in words is "one hundred forty-five million, two hundred forty-three thousand, four hundred sixty-four".