145898464 has 24 divisors (see below), whose sum is σ = 290878560. Its totient is φ = 72024576.

The previous prime is 145898443. The next prime is 145898477. The reversal of 145898464 is 464898541.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26329 + ... + 31384.

It is an arithmetic number, because the mean of its divisors is an integer number (12119940).

Almost surely, 2^145898464 is an apocalyptic number.

It is an amenable number.

145898464 is a deficient number, since it is larger than the sum of its proper divisors (144980096).

145898464 is an equidigital number, since it uses as much as digits as its factorization.

145898464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57802 (or 57794 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The square root of 145898464 is about 12078.8436532642. The cubic root of 145898464 is about 526.4416478967.

The spelling of 145898464 in words is "one hundred forty-five million, eight hundred ninety-eight thousand, four hundred sixty-four".