198572741 has 4 divisors (see below), whose sum is σ = 201086400. Its totient is φ = 196059084.

The previous prime is 198572723. The next prime is 198572749. The reversal of 198572741 is 147275891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 198572741 - 2²⁶ = 131463877 is a prime.

It is a super-2 number, since 2×198572741² = 78862266936506162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198572692 and 198572701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198572749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256711 + ... + 1256868.

It is an arithmetic number, because the mean of its divisors is an integer number (50271600).

Almost surely, 2^198572741 is an apocalyptic number.

It is an amenable number.

198572741 is a deficient number, since it is larger than the sum of its proper divisors (2513659).

198572741 is an equidigital number, since it uses as much as digits as its factorization.

198572741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513658.

The product of its digits is 141120, while the sum is 44.

The square root of 198572741 is about 14091.5840486441. The cubic root of 198572741 is about 583.4091151252.

The spelling of 198572741 in words is "one hundred ninety-eight million, five hundred seventy-two thousand, seven hundred forty-one".