145861259 has 2 divisors, whose sum is σ = 145861260. Its totient is φ = 145861258.

The previous prime is 145861253. The next prime is 145861273. The reversal of 145861259 is 952168541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145861259 is a prime.

It is not a weakly prime, because it can be changed into another prime (145861253) 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, 72930629 + 72930630.

It is an arithmetic number, because the mean of its divisors is an integer number (72930630).

Almost surely, 2^145861259 is an apocalyptic number.

145861259 is a deficient number, since it is larger than the sum of its proper divisors (1).

145861259 is an equidigital number, since it uses as much as digits as its factorization.

145861259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 41.

The square root of 145861259 is about 12077.3034655920. The cubic root of 145861259 is about 526.3968954799.

The spelling of 145861259 in words is "one hundred forty-five million, eight hundred sixty-one thousand, two hundred fifty-nine".