145141619 has 4 divisors (see below), whose sum is σ = 165876144. Its totient is φ = 124407096.

The previous prime is 145141603. The next prime is 145141621. The reversal of 145141619 is 916141541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 916141541 = 7 ⋅130877363.

It is a cyclic number.

It is not a de Polignac number, because 145141619 - 2⁴ = 145141603 is a prime.

It is a super-2 number, since 2×145141619² = 42132179131882322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145141819) 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, 10367252 + ... + 10367265.

It is an arithmetic number, because the mean of its divisors is an integer number (41469036).

Almost surely, 2^145141619 is an apocalyptic number.

145141619 is a deficient number, since it is larger than the sum of its proper divisors (20734525).

145141619 is an equidigital number, since it uses as much as digits as its factorization.

145141619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20734524.

The product of its digits is 4320, while the sum is 32.

The square root of 145141619 is about 12047.4735525752. The cubic root of 145141619 is about 525.5297678866.

The spelling of 145141619 in words is "one hundred forty-five million, one hundred forty-one thousand, six hundred nineteen".