99145087423 has 2 divisors, whose sum is σ = 99145087424. Its totient is φ = 99145087422.

The previous prime is 99145087417. The next prime is 99145087469. The reversal of 99145087423 is 32478054199.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99145087423 is a prime.

It is a super-2 number, since 2×99145087423² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99145097423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49572543711 + 49572543712.

It is an arithmetic number, because the mean of its divisors is an integer number (49572543712).

Almost surely, 2^99145087423 is an apocalyptic number.

99145087423 is a deficient number, since it is larger than the sum of its proper divisors (1).

99145087423 is an equidigital number, since it uses as much as digits as its factorization.

99145087423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 99145087423 in words is "ninety-nine billion, one hundred forty-five million, eighty-seven thousand, four hundred twenty-three".