1651262141 has 2 divisors, whose sum is σ = 1651262142. Its totient is φ = 1651262140.

The previous prime is 1651262083. The next prime is 1651262153. The reversal of 1651262141 is 1412621561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1273776100 + 377486041 = 35690^2 + 19429^2 .

It is a cyclic number.

It is not a de Polignac number, because 1651262141 - 2²² = 1647067837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1651262191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825631070 + 825631071.

It is an arithmetic number, because the mean of its divisors is an integer number (825631071).

Almost surely, 2^1651262141 is an apocalyptic number.

It is an amenable number.

1651262141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1651262141 is an equidigital number, since it uses as much as digits as its factorization.

1651262141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 1651262141 is about 40635.7249350864. The cubic root of 1651262141 is about 1181.9669724214.

The spelling of 1651262141 in words is "one billion, six hundred fifty-one million, two hundred sixty-two thousand, one hundred forty-one".