951981121 has 8 divisors (see below), whose sum is σ = 1171669184. Its totient is φ = 753215760.

The previous prime is 951981119. The next prime is 951981169. The reversal of 951981121 is 121189159.

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 951981121 - 2¹ = 951981119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (951981221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5230575 + ... + 5230756.

It is an arithmetic number, because the mean of its divisors is an integer number (146458648).

Almost surely, 2^951981121 is an apocalyptic number.

951981121 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

951981121 is a deficient number, since it is larger than the sum of its proper divisors (219688063).

951981121 is a wasteful number, since it uses less digits than its factorization.

951981121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461351.

The product of its digits is 6480, while the sum is 37.

The square root of 951981121 is about 30854.1913036138. The cubic root of 951981121 is about 983.7304440582.

The spelling of 951981121 in words is "nine hundred fifty-one million, nine hundred eighty-one thousand, one hundred twenty-one".