1051491377 has 2 divisors, whose sum is σ = 1051491378. Its totient is φ = 1051491376.

The previous prime is 1051491319. The next prime is 1051491401. The reversal of 1051491377 is 7731941501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1039353121 + 12138256 = 32239^2 + 3484^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051491377 - 2⁶ = 1051491313 is a prime.

It is a super-2 number, since 2×1051491377² = 2211268231810712258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051491377.

It is not a weakly prime, because it can be changed into another prime (1051491307) 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, 525745688 + 525745689.

It is an arithmetic number, because the mean of its divisors is an integer number (525745689).

Almost surely, 2^1051491377 is an apocalyptic number.

It is an amenable number.

1051491377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051491377 is an equidigital number, since it uses as much as digits as its factorization.

1051491377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 1051491377 is about 32426.7077730688. The cubic root of 1051491377 is about 1016.8773450818.

The spelling of 1051491377 in words is "one billion, fifty-one million, four hundred ninety-one thousand, three hundred seventy-seven".