145637198 has 16 divisors (see below), whose sum is σ = 264350304. Its totient is φ = 58744320.

The previous prime is 145637183. The next prime is 145637201. The reversal of 145637198 is 891736541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305723 + ... + 306198.

It is an arithmetic number, because the mean of its divisors is an integer number (16521894).

Almost surely, 2^145637198 is an apocalyptic number.

145637198 is a deficient number, since it is larger than the sum of its proper divisors (118713106).

145637198 is a wasteful number, since it uses less digits than its factorization.

145637198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611947.

The product of its digits is 181440, while the sum is 44.

The square root of 145637198 is about 12068.0237818791. The cubic root of 145637198 is about 526.1272203564.

The spelling of 145637198 in words is "one hundred forty-five million, six hundred thirty-seven thousand, one hundred ninety-eight".