121772283 has 16 divisors (see below), whose sum is σ = 165594240. Its totient is φ = 79574144.

The previous prime is 121772269. The next prime is 121772297. The reversal of 121772283 is 382277121.

It is an interprime number because it is at equal distance from previous prime (121772269) and next prime (121772297).

It is a cyclic number.

It is not a de Polignac number, because 121772283 - 2⁵ = 121772251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121772213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77635 + ... + 79187.

It is an arithmetic number, because the mean of its divisors is an integer number (10349640).

Almost surely, 2^121772283 is an apocalyptic number.

121772283 is a deficient number, since it is larger than the sum of its proper divisors (43821957).

121772283 is a wasteful number, since it uses less digits than its factorization.

121772283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058.

The product of its digits is 9408, while the sum is 33.

The square root of 121772283 is about 11035.0479382738. The cubic root of 121772283 is about 495.6587942854.

The spelling of 121772283 in words is "one hundred twenty-one million, seven hundred seventy-two thousand, two hundred eighty-three".