121503275 has 12 divisors (see below), whose sum is σ = 150816984. Its totient is φ = 97104000.

The previous prime is 121503269. The next prime is 121503287. The reversal of 121503275 is 572305121.

It is not a de Polignac number, because 121503275 - 2⁶ = 121503211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32240 + ... + 35810.

It is an arithmetic number, because the mean of its divisors is an integer number (12568082).

Almost surely, 2^121503275 is an apocalyptic number.

121503275 is a deficient number, since it is larger than the sum of its proper divisors (29313709).

121503275 is a wasteful number, since it uses less digits than its factorization.

121503275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942 (or 4937 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 121503275 is about 11022.8523985400. The cubic root of 121503275 is about 495.2935374225.

Adding to 121503275 its reverse (572305121), we get a palindrome (693808396).

The spelling of 121503275 in words is "one hundred twenty-one million, five hundred three thousand, two hundred seventy-five".