145730319 has 16 divisors (see below), whose sum is σ = 222243840. Its totient is φ = 83207520.

The previous prime is 145730303. The next prime is 145730357. The reversal of 145730319 is 913037541.

It is not a de Polignac number, because 145730319 - 2⁴ = 145730303 is a prime.

It is a super-2 number, since 2×145730319² = 42474651751683522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145730319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145730219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37437 + ... + 41145.

It is an arithmetic number, because the mean of its divisors is an integer number (13890240).

Almost surely, 2^145730319 is an apocalyptic number.

145730319 is a deficient number, since it is larger than the sum of its proper divisors (76513521).

145730319 is a wasteful number, since it uses less digits than its factorization.

145730319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 145730319 is about 12071.8813363949. The cubic root of 145730319 is about 526.2393324062.

The spelling of 145730319 in words is "one hundred forty-five million, seven hundred thirty thousand, three hundred nineteen".