121501241 has 4 divisors (see below), whose sum is σ = 122112000. Its totient is φ = 120890484.

The previous prime is 121501189. The next prime is 121501267. The reversal of 121501241 is 142105121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121501241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121501141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305081 + ... + 305478.

It is an arithmetic number, because the mean of its divisors is an integer number (30528000).

Almost surely, 2^121501241 is an apocalyptic number.

It is an amenable number.

121501241 is a deficient number, since it is larger than the sum of its proper divisors (610759).

121501241 is an equidigital number, since it uses as much as digits as its factorization.

121501241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610758.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 121501241 is about 11022.7601352837. The cubic root of 121501241 is about 495.2907736213.

Adding to 121501241 its reverse (142105121), we get a palindrome (263606362).

The spelling of 121501241 in words is "one hundred twenty-one million, five hundred one thousand, two hundred forty-one".