121125542 has 8 divisors (see below), whose sum is σ = 184177416. Its totient is φ = 59733072.

The previous prime is 121125479. The next prime is 121125553. The reversal of 121125542 is 245521121.

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

It is a super-3 number, since 3×121125542³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414668 + ... + 414959.

It is an arithmetic number, because the mean of its divisors is an integer number (23022177).

Almost surely, 2^121125542 is an apocalyptic number.

121125542 is a deficient number, since it is larger than the sum of its proper divisors (63051874).

121125542 is an equidigital number, since it uses as much as digits as its factorization.

121125542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829702.

The product of its digits is 800, while the sum is 23.

The square root of 121125542 is about 11005.7049751481. The cubic root of 121125542 is about 494.7797435214.

Adding to 121125542 its reverse (245521121), we get a palindrome (366646663).

The spelling of 121125542 in words is "one hundred twenty-one million, one hundred twenty-five thousand, five hundred forty-two".