145105141 has 4 divisors (see below), whose sum is σ = 149785984. Its totient is φ = 140424300.

The previous prime is 145105133. The next prime is 145105151. The reversal of 145105141 is 141501541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141501541 = 1571 ⋅90071.

It is a cyclic number.

It is not a de Polignac number, because 145105141 - 2³ = 145105133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145105151) 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, 2340375 + ... + 2340436.

It is an arithmetic number, because the mean of its divisors is an integer number (37446496).

Almost surely, 2^145105141 is an apocalyptic number.

It is an amenable number.

145105141 is a deficient number, since it is larger than the sum of its proper divisors (4680843).

145105141 is an equidigital number, since it uses as much as digits as its factorization.

145105141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680842.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 145105141 is about 12045.9595300665. The cubic root of 145105141 is about 525.4857376004.

Adding to 145105141 its reverse (141501541), we get a palindrome (286606682).

The spelling of 145105141 in words is "one hundred forty-five million, one hundred five thousand, one hundred forty-one".