121263541 has 8 divisors (see below), whose sum is σ = 142332800. Its totient is φ = 101130768.

The previous prime is 121263539. The next prime is 121263553. The reversal of 121263541 is 145362121.

It is a happy number.

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

It is not a de Polignac number, because 121263541 - 2¹ = 121263539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213541) 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, 233841 + ... + 234358.

It is an arithmetic number, because the mean of its divisors is an integer number (17791600).

Almost surely, 2^121263541 is an apocalyptic number.

It is an amenable number.

121263541 is a deficient number, since it is larger than the sum of its proper divisors (21069259).

121263541 is an equidigital number, since it uses as much as digits as its factorization.

121263541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468243.

The product of its digits is 1440, while the sum is 25.

The square root of 121263541 is about 11011.9726207433. The cubic root of 121263541 is about 494.9675739736.

The spelling of 121263541 in words is "one hundred twenty-one million, two hundred sixty-three thousand, five hundred forty-one".