145631279 has 2 divisors, whose sum is σ = 145631280. Its totient is φ = 145631278.

The previous prime is 145631263. The next prime is 145631287. The reversal of 145631279 is 972136541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145631279 - 2⁴ = 145631263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145636279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72815639 + 72815640.

It is an arithmetic number, because the mean of its divisors is an integer number (72815640).

Almost surely, 2^145631279 is an apocalyptic number.

145631279 is a deficient number, since it is larger than the sum of its proper divisors (1).

145631279 is an equidigital number, since it uses as much as digits as its factorization.

145631279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 145631279 is about 12067.7785445375. The cubic root of 145631279 is about 526.1200926234.

The spelling of 145631279 in words is "one hundred forty-five million, six hundred thirty-one thousand, two hundred seventy-nine".