95211981 has 12 divisors (see below), whose sum is σ = 137622108. Its totient is φ = 63431424.

The previous prime is 95211953. The next prime is 95212031. The reversal of 95211981 is 18911259.

It can be written as a sum of positive squares in 2 ways, for example, as 54686025 + 40525956 = 7395^2 + 6366^2 .

It is not a de Polignac number, because 95211981 - 2⁹ = 95211469 is a prime.

It is a super-2 number, since 2×95211981² = 18130642651888722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (95211931) 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, 15901 + ... + 21053.

It is an arithmetic number, because the mean of its divisors is an integer number (11468509).

Almost surely, 2^95211981 is an apocalyptic number.

It is an amenable number.

95211981 is a deficient number, since it is larger than the sum of its proper divisors (42410127).

95211981 is a wasteful number, since it uses less digits than its factorization.

95211981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7212 (or 7209 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The square root of 95211981 is about 9757.6626811957. The cubic root of 95211981 is about 456.6293969146.

The spelling of 95211981 in words is "ninety-five million, two hundred eleven thousand, nine hundred eighty-one".