1942751149 has 2 divisors, whose sum is σ = 1942751150. Its totient is φ = 1942751148.

The previous prime is 1942751081. The next prime is 1942751243. The reversal of 1942751149 is 9411572491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1016461924 + 926289225 = 31882^2 + 30435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1942751149 - 2⁷ = 1942751021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1942781149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971375574 + 971375575.

It is an arithmetic number, because the mean of its divisors is an integer number (971375575).

Almost surely, 2^1942751149 is an apocalyptic number.

It is an amenable number.

1942751149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942751149 is an equidigital number, since it uses as much as digits as its factorization.

1942751149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 43.

The square root of 1942751149 is about 44076.6508369227. The cubic root of 1942751149 is about 1247.7829819762.

The spelling of 1942751149 in words is "one billion, nine hundred forty-two million, seven hundred fifty-one thousand, one hundred forty-nine".