121166542 has 8 divisors (see below), whose sum is σ = 207714096. Its totient is φ = 51928512.

The previous prime is 121166537. The next prime is 121166567. The reversal of 121166542 is 245661121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121166542.

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, 4327363 + ... + 4327390.

It is an arithmetic number, because the mean of its divisors is an integer number (25964262).

Almost surely, 2^121166542 is an apocalyptic number.

121166542 is a deficient number, since it is larger than the sum of its proper divisors (86547554).

121166542 is an equidigital number, since it uses as much as digits as its factorization.

121166542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8654762.

The product of its digits is 2880, while the sum is 28.

The square root of 121166542 is about 11007.5674878694. The cubic root of 121166542 is about 494.8355635153.

The spelling of 121166542 in words is "one hundred twenty-one million, one hundred sixty-six thousand, five hundred forty-two".