955381121 has 2 divisors, whose sum is σ = 955381122. Its totient is φ = 955381120.

The previous prime is 955381111. The next prime is 955381223. The reversal of 955381121 is 121183559.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667705600 + 287675521 = 25840^2 + 16961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-955381121 is a prime.

It is a super-3 number, since 3×955381121³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (955381111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 477690560 + 477690561.

It is an arithmetic number, because the mean of its divisors is an integer number (477690561).

Almost surely, 2^955381121 is an apocalyptic number.

It is an amenable number.

955381121 is a deficient number, since it is larger than the sum of its proper divisors (1).

955381121 is an equidigital number, since it uses as much as digits as its factorization.

955381121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 35.

The square root of 955381121 is about 30909.2400585974. The cubic root of 955381121 is about 984.9001834830.

The spelling of 955381121 in words is "nine hundred fifty-five million, three hundred eighty-one thousand, one hundred twenty-one".