307242754549 has 2 divisors, whose sum is σ = 307242754550. Its totient is φ = 307242754548.

The previous prime is 307242754537. The next prime is 307242754607. The reversal of 307242754549 is 945457242703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294829452324 + 12413302225 = 542982^2 + 111415^2 .

It is a cyclic number.

It is not a de Polignac number, because 307242754549 - 2⁵ = 307242754517 is a prime.

It is a super-2 number, since 2×307242754549² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 307242754496 and 307242754505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (307242754249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153621377274 + 153621377275.

It is an arithmetic number, because the mean of its divisors is an integer number (153621377275).

Almost surely, 2^307242754549 is an apocalyptic number.

It is an amenable number.

307242754549 is a deficient number, since it is larger than the sum of its proper divisors (1).

307242754549 is an equidigital number, since it uses as much as digits as its factorization.

307242754549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 307242754549 in words is "three hundred seven billion, two hundred forty-two million, seven hundred fifty-four thousand, five hundred forty-nine".