121199534 has 8 divisors (see below), whose sum is σ = 181917120. Its totient is φ = 60560496.

The previous prime is 121199501. The next prime is 121199539. The reversal of 121199534 is 435991121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 121199494 and 121199503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121199539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15614 + ... + 22049.

It is an arithmetic number, because the mean of its divisors is an integer number (22739640).

Almost surely, 2^121199534 is an apocalyptic number.

121199534 is a deficient number, since it is larger than the sum of its proper divisors (60717586).

121199534 is a wasteful number, since it uses less digits than its factorization.

121199534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39274.

The product of its digits is 9720, while the sum is 35.

The square root of 121199534 is about 11009.0659912637. The cubic root of 121199534 is about 494.8804717689.

The spelling of 121199534 in words is "one hundred twenty-one million, one hundred ninety-nine thousand, five hundred thirty-four".