121748143 has 12 divisors (see below), whose sum is σ = 140868280. Its totient is φ = 104852880.

The previous prime is 121748141. The next prime is 121748149. The reversal of 121748143 is 341847121.

It is not a de Polignac number, because 121748143 - 2¹ = 121748141 is a prime.

It is a super-2 number, since 2×121748143² = 29645220647896898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121748141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24180 + ... + 28777.

Almost surely, 2^121748143 is an apocalyptic number.

121748143 is a deficient number, since it is larger than the sum of its proper divisors (19120137).

121748143 is a wasteful number, since it uses less digits than its factorization.

121748143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52998 (or 52987 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 121748143 is about 11033.9540963337. The cubic root of 121748143 is about 495.6260391742.

The spelling of 121748143 in words is "one hundred twenty-one million, seven hundred forty-eight thousand, one hundred forty-three".