99514981 has 2 divisors, whose sum is σ = 99514982. Its totient is φ = 99514980.

The previous prime is 99514939. The next prime is 99514993. The reversal of 99514981 is 18941599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60202081 + 39312900 = 7759^2 + 6270^2 .

It is a cyclic number.

It is not a de Polignac number, because 99514981 - 2¹³ = 99506789 is a prime.

It is a super-2 number, since 2×99514981² = 19806462886860722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99514901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49757490 + 49757491.

It is an arithmetic number, because the mean of its divisors is an integer number (49757491).

Almost surely, 2^99514981 is an apocalyptic number.

It is an amenable number.

99514981 is a deficient number, since it is larger than the sum of its proper divisors (1).

99514981 is an equidigital number, since it uses as much as digits as its factorization.

99514981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 46.

The square root of 99514981 is about 9975.7195730433. The cubic root of 99514981 is about 463.4072472642.

The spelling of 99514981 in words is "ninety-nine million, five hundred fourteen thousand, nine hundred eighty-one".