121141455 has 16 divisors (see below), whose sum is σ = 197112960. Its totient is φ = 63513248.

The previous prime is 121141417. The next prime is 121141477. The reversal of 121141455 is 554141121.

It is a cyclic number.

It is not a de Polignac number, because 121141455 - 2⁷ = 121141327 is a prime.

It is a super-3 number, since 3×121141455³ (a number of 25 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67557 + ... + 69326.

It is an arithmetic number, because the mean of its divisors is an integer number (12319560).

Almost surely, 2^121141455 is an apocalyptic number.

121141455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121141455 is a deficient number, since it is larger than the sum of its proper divisors (75971505).

121141455 is a wasteful number, since it uses less digits than its factorization.

121141455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136950.

The product of its digits is 800, while the sum is 24.

The square root of 121141455 is about 11006.4278946441. The cubic root of 121141455 is about 494.8014099819.

Adding to 121141455 its reverse (554141121), we get a palindrome (675282576).

The spelling of 121141455 in words is "one hundred twenty-one million, one hundred forty-one thousand, four hundred fifty-five".