121356265 has 8 divisors (see below), whose sum is σ = 145781568. Its totient is φ = 96982320.

The previous prime is 121356259. The next prime is 121356281. The reversal of 121356265 is 562653121.

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

It is not a de Polignac number, because 121356265 - 2⁵ = 121356233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7431 + ... + 17260.

It is an arithmetic number, because the mean of its divisors is an integer number (18222696).

Almost surely, 2^121356265 is an apocalyptic number.

It is an amenable number.

121356265 is a deficient number, since it is larger than the sum of its proper divisors (24425303).

121356265 is an equidigital number, since it uses as much as digits as its factorization.

121356265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25679.

The product of its digits is 10800, while the sum is 31.

The square root of 121356265 is about 11016.1819610970. The cubic root of 121356265 is about 495.0937005900.

The spelling of 121356265 in words is "one hundred twenty-one million, three hundred fifty-six thousand, two hundred sixty-five".