121532199 has 8 divisors (see below), whose sum is σ = 163116672. Its totient is φ = 80484600.

The previous prime is 121532149. The next prime is 121532209. The reversal of 121532199 is 991235121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121532199 - 2⁷ = 121532071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121532119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133689 + ... + 134594.

It is an arithmetic number, because the mean of its divisors is an integer number (20389584).

Almost surely, 2^121532199 is an apocalyptic number.

121532199 is a deficient number, since it is larger than the sum of its proper divisors (41584473).

121532199 is a wasteful number, since it uses less digits than its factorization.

121532199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268437.

The product of its digits is 4860, while the sum is 33.

The square root of 121532199 is about 11024.1643220699. The cubic root of 121532199 is about 495.3328360440.

The spelling of 121532199 in words is "one hundred twenty-one million, five hundred thirty-two thousand, one hundred ninety-nine".