121724098 has 4 divisors (see below), whose sum is σ = 182586150. Its totient is φ = 60862048.

The previous prime is 121724087. The next prime is 121724101. The reversal of 121724098 is 890427121.

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

It can be written as a sum of positive squares in only one way, i.e., 113273449 + 8450649 = 10643^2 + 2907^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30431023 + ... + 30431026.

Almost surely, 2^121724098 is an apocalyptic number.

121724098 is a deficient number, since it is larger than the sum of its proper divisors (60862052).

121724098 is an equidigital number, since it uses as much as digits as its factorization.

121724098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60862051.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 121724098 is about 11032.8644512656. The cubic root of 121724098 is about 495.5934086621.

The spelling of 121724098 in words is "one hundred twenty-one million, seven hundred twenty-four thousand, ninety-eight".