3145047750749 has 2 divisors, whose sum is σ = 3145047750750. Its totient is φ = 3145047750748.

The previous prime is 3145047750653. The next prime is 3145047750797. The reversal of 3145047750749 is 9470577405413.

3145047750749 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1655293242724 + 1489754508025 = 1286582^2 + 1220555^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145047750749 - 2²⁰ = 3145046702173 is a prime.

It is a super-2 number, since 2×3145047750749² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3145047750694 and 3145047750703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3145047750799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572523875374 + 1572523875375.

It is an arithmetic number, because the mean of its divisors is an integer number (1572523875375).

Almost surely, 2^{3145047750749} is an apocalyptic number.

It is an amenable number.

3145047750749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145047750749 is an equidigital number, since it uses as much as digits as its factorization.

3145047750749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14817600, while the sum is 56.

The spelling of 3145047750749 in words is "three trillion, one hundred forty-five billion, forty-seven million, seven hundred fifty thousand, seven hundred forty-nine".