1516649753 has 2 divisors, whose sum is σ = 1516649754. Its totient is φ = 1516649752.

The previous prime is 1516649741. The next prime is 1516649759. The reversal of 1516649753 is 3579466151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1019716489 + 496933264 = 31933^2 + 22292^2 .

It is a cyclic number.

It is not a de Polignac number, because 1516649753 - 2¹² = 1516645657 is a prime.

It is a super-2 number, since 2×1516649753² = 4600452946549922018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1516649698 and 1516649707.

It is not a weakly prime, because it can be changed into another prime (1516649759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758324876 + 758324877.

It is an arithmetic number, because the mean of its divisors is an integer number (758324877).

Almost surely, 2^1516649753 is an apocalyptic number.

It is an amenable number.

1516649753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516649753 is an equidigital number, since it uses as much as digits as its factorization.

1516649753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 1516649753 is about 38944.1876664542. The cubic root of 1516649753 is about 1148.9340476707.

The spelling of 1516649753 in words is "one billion, five hundred sixteen million, six hundred forty-nine thousand, seven hundred fifty-three".