145871699 has 2 divisors, whose sum is σ = 145871700. Its totient is φ = 145871698.

The previous prime is 145871651. The next prime is 145871717. The reversal of 145871699 is 996178541.

145871699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145871699 - 2²⁰ = 144823123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (145871899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72935849 + 72935850.

It is an arithmetic number, because the mean of its divisors is an integer number (72935850).

Almost surely, 2^145871699 is an apocalyptic number.

145871699 is a deficient number, since it is larger than the sum of its proper divisors (1).

145871699 is an equidigital number, since it uses as much as digits as its factorization.

145871699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 50.

The square root of 145871699 is about 12077.7356735441. The cubic root of 145871699 is about 526.4094541093.

The spelling of 145871699 in words is "one hundred forty-five million, eight hundred seventy-one thousand, six hundred ninety-nine".