198124429 has 4 divisors (see below), whose sum is σ = 198503776. Its totient is φ = 197745084.

The previous prime is 198124417. The next prime is 198124439. The reversal of 198124429 is 924421891.

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, and also an emirpimes, since its reverse is a distinct semiprime: 924421891 = 31 ⋅29820061.

It is a cyclic number.

It is not a de Polignac number, because 198124429 - 2¹⁹ = 197600141 is a prime.

It is a super-3 number, since 3×198124429³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198124391 and 198124400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198124439) 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, 188889 + ... + 189934.

It is an arithmetic number, because the mean of its divisors is an integer number (49625944).

Almost surely, 2^198124429 is an apocalyptic number.

It is an amenable number.

198124429 is a deficient number, since it is larger than the sum of its proper divisors (379347).

198124429 is an equidigital number, since it uses as much as digits as its factorization.

198124429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379346.

The product of its digits is 41472, while the sum is 40.

The square root of 198124429 is about 14075.6679770446. The cubic root of 198124429 is about 582.9697356079.

The spelling of 198124429 in words is "one hundred ninety-eight million, one hundred twenty-four thousand, four hundred twenty-nine".