121455501 has 8 divisors (see below), whose sum is σ = 162003264. Its totient is φ = 80939040.

The previous prime is 121455493. The next prime is 121455517. The reversal of 121455501 is 105554121.

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

It is not a de Polignac number, because 121455501 - 2³ = 121455493 is a prime.

It is a super-2 number, since 2×121455501² = 29502877446322002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121455601) 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, 3625 + ... + 16001.

It is an arithmetic number, because the mean of its divisors is an integer number (20250408).

Almost surely, 2^121455501 is an apocalyptic number.

It is an amenable number.

121455501 is a deficient number, since it is larger than the sum of its proper divisors (40547763).

121455501 is a wasteful number, since it uses less digits than its factorization.

121455501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15651.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 121455501 is about 11020.6851420409. The cubic root of 121455501 is about 495.2286139177.

The spelling of 121455501 in words is "one hundred twenty-one million, four hundred fifty-five thousand, five hundred one".