145631183 has 2 divisors, whose sum is σ = 145631184. Its totient is φ = 145631182.

The previous prime is 145631119. The next prime is 145631191. The reversal of 145631183 is 381136541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145631183 - 2⁶ = 145631119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145631683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72815591 + 72815592.

It is an arithmetic number, because the mean of its divisors is an integer number (72815592).

Almost surely, 2^145631183 is an apocalyptic number.

145631183 is a deficient number, since it is larger than the sum of its proper divisors (1).

145631183 is an equidigital number, since it uses as much as digits as its factorization.

145631183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 145631183 is about 12067.7745670028. The cubic root of 145631183 is about 526.1199770174.

The spelling of 145631183 in words is "one hundred forty-five million, six hundred thirty-one thousand, one hundred eighty-three".