121960553 has 8 divisors (see below), whose sum is σ = 143282496. Its totient is φ = 102344400.

The previous prime is 121960511. The next prime is 121960577. The reversal of 121960553 is 355069121.

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

It is a cyclic number.

It is not a de Polignac number, because 121960553 - 2¹⁴ = 121944169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121960453) 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, 426293 + ... + 426578.

It is an arithmetic number, because the mean of its divisors is an integer number (17910312).

Almost surely, 2^121960553 is an apocalyptic number.

121960553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121960553 is a deficient number, since it is larger than the sum of its proper divisors (21321943).

121960553 is a wasteful number, since it uses less digits than its factorization.

121960553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852895.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 121960553 is about 11043.5751910330. The cubic root of 121960553 is about 495.9141058881.

The spelling of 121960553 in words is "one hundred twenty-one million, nine hundred sixty thousand, five hundred fifty-three".