1651130387 has 2 divisors, whose sum is σ = 1651130388. Its totient is φ = 1651130386.

The previous prime is 1651130357. The next prime is 1651130407. The reversal of 1651130387 is 7830311561.

It is a strong prime.

It is an emirp because it is prime and its reverse (7830311561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1651130387 - 2⁶ = 1651130323 is a prime.

It is not a weakly prime, because it can be changed into another prime (1651130317) 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, 825565193 + 825565194.

It is an arithmetic number, because the mean of its divisors is an integer number (825565194).

Almost surely, 2^1651130387 is an apocalyptic number.

1651130387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1651130387 is an equidigital number, since it uses as much as digits as its factorization.

1651130387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1651130387 is about 40634.1037430383. The cubic root of 1651130387 is about 1181.9355352529.

The spelling of 1651130387 in words is "one billion, six hundred fifty-one million, one hundred thirty thousand, three hundred eighty-seven".