145334719 has 4 divisors (see below), whose sum is σ = 145472760. Its totient is φ = 145196680.

The previous prime is 145334713. The next prime is 145334729. The reversal of 145334719 is 917433541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145334719 - 2²⁷ = 11116991 is a prime.

It is a super-2 number, since 2×145334719² = 42244361093617922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145334713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67429 + ... + 69550.

It is an arithmetic number, because the mean of its divisors is an integer number (36368190).

Almost surely, 2^145334719 is an apocalyptic number.

145334719 is a deficient number, since it is larger than the sum of its proper divisors (138041).

145334719 is a wasteful number, since it uses less digits than its factorization.

145334719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138040.

The product of its digits is 45360, while the sum is 37.

The square root of 145334719 is about 12055.4850172028. The cubic root of 145334719 is about 525.7627238744.

The spelling of 145334719 in words is "one hundred forty-five million, three hundred thirty-four thousand, seven hundred nineteen".