145753198 has 4 divisors (see below), whose sum is σ = 218629800. Its totient is φ = 72876598.

The previous prime is 145753177. The next prime is 145753213. The reversal of 145753198 is 891357541.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36438298 + ... + 36438301.

It is an arithmetic number, because the mean of its divisors is an integer number (54657450).

Almost surely, 2^145753198 is an apocalyptic number.

145753198 is a deficient number, since it is larger than the sum of its proper divisors (72876602).

145753198 is an equidigital number, since it uses as much as digits as its factorization.

145753198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72876601.

The product of its digits is 151200, while the sum is 43.

The square root of 145753198 is about 12072.8289145502. The cubic root of 145753198 is about 526.2668700290.

The spelling of 145753198 in words is "one hundred forty-five million, seven hundred fifty-three thousand, one hundred ninety-eight".