145533798 has 24 divisors (see below), whose sum is σ = 315588936. Its totient is φ = 48470400.

The previous prime is 145533797. The next prime is 145533799. The reversal of 145533798 is 897335541.

145533798 is a `hidden beast` number, since 1 + 4 + 553 + 3 + 7 + 98 = 666.

145533798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145533797) and next prime (145533799).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145533793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24918 + ... + 30198.

It is an arithmetic number, because the mean of its divisors is an integer number (13149539).

Almost surely, 2^145533798 is an apocalyptic number.

145533798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145533798 is an abundant number, since it is smaller than the sum of its proper divisors (170055138).

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

145533798 is a wasteful number, since it uses less digits than its factorization.

145533798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820 (or 6817 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 145533798 is about 12063.7389726403. The cubic root of 145533798 is about 526.0026770045.

It can be divided in two parts, 1455 and 33798, that added together give a palindrome (35253).

The spelling of 145533798 in words is "one hundred forty-five million, five hundred thirty-three thousand, seven hundred ninety-eight".