121810967 has 8 divisors (see below), whose sum is σ = 134584416. Its totient is φ = 109660672.

The previous prime is 121810963. The next prime is 121810973. The reversal of 121810967 is 769018121.

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 121810967 - 2² = 121810963 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121810963) 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, 155378 + ... + 156159.

It is an arithmetic number, because the mean of its divisors is an integer number (16823052).

Almost surely, 2^121810967 is an apocalyptic number.

121810967 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

121810967 is a deficient number, since it is larger than the sum of its proper divisors (12773449).

121810967 is a wasteful number, since it uses less digits than its factorization.

121810967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311577.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 121810967 is about 11036.8005780661. The cubic root of 121810967 is about 495.7112748508.

The spelling of 121810967 in words is "one hundred twenty-one million, eight hundred ten thousand, nine hundred sixty-seven".