145893798 has 24 divisors (see below), whose sum is σ = 327811848. Its totient is φ = 48631104.

The previous prime is 145893767. The next prime is 145893821. The reversal of 145893798 is 897398541.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149611 + ... + 150582.

It is an arithmetic number, because the mean of its divisors is an integer number (13658827).

Almost surely, 2^145893798 is an apocalyptic number.

145893798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145893798 is an abundant number, since it is smaller than the sum of its proper divisors (181918050).

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

145893798 is an equidigital number, since it uses as much as digits as its factorization.

145893798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300210 (or 300198 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 145893798 is about 12078.6505040919. The cubic root of 145893798 is about 526.4360357679.

The spelling of 145893798 in words is "one hundred forty-five million, eight hundred ninety-three thousand, seven hundred ninety-eight".