145141919 has 8 divisors (see below), whose sum is σ = 156588432. Its totient is φ = 133735680.

The previous prime is 145141901. The next prime is 145141921. The reversal of 145141919 is 919141541.

145141919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-145141919 is a prime.

It is a super-2 number, since 2×145141919² = 42132353302005122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145141939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2354 + ... + 17199.

It is an arithmetic number, because the mean of its divisors is an integer number (19573554).

Almost surely, 2^145141919 is an apocalyptic number.

145141919 is a deficient number, since it is larger than the sum of its proper divisors (11446513).

145141919 is a wasteful number, since it uses less digits than its factorization.

145141919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20137.

The product of its digits is 6480, while the sum is 35.

The square root of 145141919 is about 12047.4860033121. The cubic root of 145141919 is about 525.5301299671.

The spelling of 145141919 in words is "one hundred forty-five million, one hundred forty-one thousand, nine hundred nineteen".