99548381 has 2 divisors, whose sum is σ = 99548382. Its totient is φ = 99548380.

The previous prime is 99548333. The next prime is 99548431. The reversal of 99548381 is 18384599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81613156 + 17935225 = 9034^2 + 4235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99548381 is a prime.

It is a super-2 number, since 2×99548381² = 19819760319442322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99548321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49774190 + 49774191.

It is an arithmetic number, because the mean of its divisors is an integer number (49774191).

Almost surely, 2^99548381 is an apocalyptic number.

It is an amenable number.

99548381 is a deficient number, since it is larger than the sum of its proper divisors (1).

99548381 is an equidigital number, since it uses as much as digits as its factorization.

99548381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The square root of 99548381 is about 9977.3934973018. The cubic root of 99548381 is about 463.4590855926.

The spelling of 99548381 in words is "ninety-nine million, five hundred forty-eight thousand, three hundred eighty-one".