121361894 has 4 divisors (see below), whose sum is σ = 182042844. Its totient is φ = 60680946.

The previous prime is 121361893. The next prime is 121361899. The reversal of 121361894 is 498163121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121361893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30340472 + ... + 30340475.

It is an arithmetic number, because the mean of its divisors is an integer number (45510711).

Almost surely, 2^121361894 is an apocalyptic number.

121361894 is a deficient number, since it is larger than the sum of its proper divisors (60680950).

121361894 is an equidigital number, since it uses as much as digits as its factorization.

121361894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60680949.

The product of its digits is 10368, while the sum is 35.

The square root of 121361894 is about 11016.4374459260. The cubic root of 121361894 is about 495.1013552953.

The spelling of 121361894 in words is "one hundred twenty-one million, three hundred sixty-one thousand, eight hundred ninety-four".