1630112761 has 2 divisors, whose sum is σ = 1630112762. Its totient is φ = 1630112760.

The previous prime is 1630112713. The next prime is 1630112791. The reversal of 1630112761 is 1672110361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1515622761 + 114490000 = 38931^2 + 10700^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630112761 - 2¹⁹ = 1629588473 is a prime.

It is a super-2 number, since 2×1630112761² = 5314535227150086242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1630112791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815056380 + 815056381.

It is an arithmetic number, because the mean of its divisors is an integer number (815056381).

Almost surely, 2^1630112761 is an apocalyptic number.

It is an amenable number.

1630112761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630112761 is an equidigital number, since it uses as much as digits as its factorization.

1630112761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1630112761 is about 40374.6549335100. The cubic root of 1630112761 is about 1176.8990593627.

The spelling of 1630112761 in words is "one billion, six hundred thirty million, one hundred twelve thousand, seven hundred sixty-one".