1751642461 has 2 divisors, whose sum is σ = 1751642462. Its totient is φ = 1751642460.

The previous prime is 1751642449. The next prime is 1751642479. The reversal of 1751642461 is 1642461571.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1751422500 + 219961 = 41850^2 + 469^2 .

It is an emirp because it is prime and its reverse (1642461571) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1751642461 - 2¹¹ = 1751640413 is a prime.

It is a super-2 number, since 2×1751642461² = 6136502622356273042, 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 1751642461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1751642861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 875821230 + 875821231.

It is an arithmetic number, because the mean of its divisors is an integer number (875821231).

Almost surely, 2^1751642461 is an apocalyptic number.

It is an amenable number.

1751642461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1751642461 is an equidigital number, since it uses as much as digits as its factorization.

1751642461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 1751642461 is about 41852.6278864303. The cubic root of 1751642461 is about 1205.4480203622.

The spelling of 1751642461 in words is "one billion, seven hundred fifty-one million, six hundred forty-two thousand, four hundred sixty-one".