45139141 has 2 divisors, whose sum is σ = 45139142. Its totient is φ = 45139140.

The previous prime is 45139091. The next prime is 45139147. The reversal of 45139141 is 14193154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32251041 + 12888100 = 5679^2 + 3590^2 .

It is a cyclic number.

It is not a de Polignac number, because 45139141 - 2⁷ = 45139013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45139147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22569570 + 22569571.

It is an arithmetic number, because the mean of its divisors is an integer number (22569571).

Almost surely, 2^45139141 is an apocalyptic number.

It is an amenable number.

45139141 is a deficient number, since it is larger than the sum of its proper divisors (1).

45139141 is an equidigital number, since it uses as much as digits as its factorization.

45139141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 45139141 is about 6718.5668858768. The cubic root of 45139141 is about 356.0555530232.

The spelling of 45139141 in words is "forty-five million, one hundred thirty-nine thousand, one hundred forty-one".