121740575 has 24 divisors (see below), whose sum is σ = 168203520. Its totient is φ = 86645600.

The previous prime is 121740571. The next prime is 121740589. The reversal of 121740575 is 575047121.

It is not a de Polignac number, because 121740575 - 2² = 121740571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121740571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8216 + ... + 17634.

It is an arithmetic number, because the mean of its divisors is an integer number (7008480).

Almost surely, 2^121740575 is an apocalyptic number.

121740575 is a deficient number, since it is larger than the sum of its proper divisors (46462945).

121740575 is a wasteful number, since it uses less digits than its factorization.

121740575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487 (or 9482 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 121740575 is about 11033.6111495738. The cubic root of 121740575 is about 495.6157694061.

Adding to 121740575 its reverse (575047121), we get a palindrome (696787696).

The spelling of 121740575 in words is "one hundred twenty-one million, seven hundred forty thousand, five hundred seventy-five".