2501738149 has 2 divisors, whose sum is σ = 2501738150. Its totient is φ = 2501738148.

The previous prime is 2501738143. The next prime is 2501738159. The reversal of 2501738149 is 9418371052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1382501124 + 1119237025 = 37182^2 + 33455^2 .

It is a cyclic number.

It is not a de Polignac number, because 2501738149 - 2⁷ = 2501738021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2501738143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250869074 + 1250869075.

It is an arithmetic number, because the mean of its divisors is an integer number (1250869075).

Almost surely, 2^2501738149 is an apocalyptic number.

It is an amenable number.

2501738149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2501738149 is an equidigital number, since it uses as much as digits as its factorization.

2501738149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 2501738149 is about 50017.3784698878. The cubic root of 2501738149 is about 1357.5232729149.

The spelling of 2501738149 in words is "two billion, five hundred one million, seven hundred thirty-eight thousand, one hundred forty-nine".