145503719 has 2 divisors, whose sum is σ = 145503720. Its totient is φ = 145503718.

The previous prime is 145503713. The next prime is 145503733. The reversal of 145503719 is 917305541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145503719 - 2⁴ = 145503703 is a prime.

It is a super-2 number, since 2×145503719² = 42342664485661922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145503713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72751859 + 72751860.

It is an arithmetic number, because the mean of its divisors is an integer number (72751860).

Almost surely, 2^145503719 is an apocalyptic number.

145503719 is a deficient number, since it is larger than the sum of its proper divisors (1).

145503719 is an equidigital number, since it uses as much as digits as its factorization.

145503719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 145503719 is about 12062.4922383395. The cubic root of 145503719 is about 525.9664363400.

The spelling of 145503719 in words is "one hundred forty-five million, five hundred three thousand, seven hundred nineteen".