145541138437 has 2 divisors, whose sum is σ = 145541138438. Its totient is φ = 145541138436.

The previous prime is 145541138411. The next prime is 145541138443. The reversal of 145541138437 is 734831145541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96505907716 + 49035230721 = 310654^2 + 221439^2 .

It is a cyclic number.

It is not a de Polignac number, because 145541138437 - 2²³ = 145532749829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145541138447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72770569218 + 72770569219.

It is an arithmetic number, because the mean of its divisors is an integer number (72770569219).

Almost surely, 2^145541138437 is an apocalyptic number.

It is an amenable number.

145541138437 is a deficient number, since it is larger than the sum of its proper divisors (1).

145541138437 is an equidigital number, since it uses as much as digits as its factorization.

145541138437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 46.

The spelling of 145541138437 in words is "one hundred forty-five billion, five hundred forty-one million, one hundred thirty-eight thousand, four hundred thirty-seven".