145919141 has 2 divisors, whose sum is σ = 145919142. Its totient is φ = 145919140.

The previous prime is 145919117. The next prime is 145919171. The reversal of 145919141 is 141919541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145902241 + 16900 = 12079^2 + 130^2 .

It is an emirp because it is prime and its reverse (141919541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145919141 - 2¹⁰ = 145918117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145919171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72959570 + 72959571.

It is an arithmetic number, because the mean of its divisors is an integer number (72959571).

Almost surely, 2^145919141 is an apocalyptic number.

It is an amenable number.

145919141 is a deficient number, since it is larger than the sum of its proper divisors (1).

145919141 is an equidigital number, since it uses as much as digits as its factorization.

145919141 is an evil number, because the sum of its binary digits is even.

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

The square root of 145919141 is about 12079.6995409654. The cubic root of 145919141 is about 526.4665161498.

It can be divided in two parts, 14591 and 9141, that added together give a palindrome (23732).

The spelling of 145919141 in words is "one hundred forty-five million, nine hundred nineteen thousand, one hundred forty-one".