145242519 has 8 divisors (see below), whose sum is σ = 198160512. Its totient is φ = 94576440.

The previous prime is 145242511. The next prime is 145242551. The reversal of 145242519 is 915242541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145242519 - 2³ = 145242511 is a prime.

It is a super-2 number, since 2×145242519² = 42190778650930722, 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 145242519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145242511) 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 in 7 ways as a sum of consecutive naturals, for example, 562827 + ... + 563084.

It is an arithmetic number, because the mean of its divisors is an integer number (24770064).

Almost surely, 2^145242519 is an apocalyptic number.

145242519 is a deficient number, since it is larger than the sum of its proper divisors (52917993).

145242519 is a wasteful number, since it uses less digits than its factorization.

145242519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125957.

The product of its digits is 14400, while the sum is 33.

The square root of 145242519 is about 12051.6604250203. The cubic root of 145242519 is about 525.6515194814.

The spelling of 145242519 in words is "one hundred forty-five million, two hundred forty-two thousand, five hundred nineteen".