121386167 has 4 divisors (see below), whose sum is σ = 138727056. Its totient is φ = 104045280.

The previous prime is 121386131. The next prime is 121386179. The reversal of 121386167 is 761683121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 761683121 = 8719 ⋅87359.

It is a cyclic number.

It is not a de Polignac number, because 121386167 - 2⁸ = 121385911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121386197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8670434 + ... + 8670447.

It is an arithmetic number, because the mean of its divisors is an integer number (34681764).

Almost surely, 2^121386167 is an apocalyptic number.

121386167 is a deficient number, since it is larger than the sum of its proper divisors (17340889).

121386167 is an equidigital number, since it uses as much as digits as its factorization.

121386167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17340888.

The product of its digits is 12096, while the sum is 35.

The square root of 121386167 is about 11017.5390627853. The cubic root of 121386167 is about 495.1343606968.

The spelling of 121386167 in words is "one hundred twenty-one million, three hundred eighty-six thousand, one hundred sixty-seven".