121461867 has 6 divisors (see below), whose sum is σ = 175444932. Its totient is φ = 80974572.

The previous prime is 121461863. The next prime is 121461883. The reversal of 121461867 is 768164121.

It is a happy number.

It is not a de Polignac number, because 121461867 - 2² = 121461863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121461863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6747873 + ... + 6747890.

It is an arithmetic number, because the mean of its divisors is an integer number (29240822).

Almost surely, 2^121461867 is an apocalyptic number.

121461867 is a deficient number, since it is larger than the sum of its proper divisors (53983065).

121461867 is a wasteful number, since it uses less digits than its factorization.

121461867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13495769 (or 13495766 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 121461867 is about 11020.9739587751. The cubic root of 121461867 is about 495.2372661133.

The spelling of 121461867 in words is "one hundred twenty-one million, four hundred sixty-one thousand, eight hundred sixty-seven".