145509883 has 2 divisors, whose sum is σ = 145509884. Its totient is φ = 145509882.

The previous prime is 145509853. The next prime is 145509887. The reversal of 145509883 is 388905541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145509883 is a prime.

It is a super-3 number, since 3×145509883³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (145509887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72754941 + 72754942.

It is an arithmetic number, because the mean of its divisors is an integer number (72754942).

Almost surely, 2^145509883 is an apocalyptic number.

145509883 is a deficient number, since it is larger than the sum of its proper divisors (1).

145509883 is an equidigital number, since it uses as much as digits as its factorization.

145509883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 145509883 is about 12062.7477383886. The cubic root of 145509883 is about 525.9738634384.

The spelling of 145509883 in words is "one hundred forty-five million, five hundred nine thousand, eight hundred eighty-three".