1230540497 has 2 divisors, whose sum is σ = 1230540498. Its totient is φ = 1230540496.

The previous prime is 1230540371. The next prime is 1230540517. The reversal of 1230540497 is 7940450321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1227731521 + 2808976 = 35039^2 + 1676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230540497 - 2¹⁶ = 1230474961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230540097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615270248 + 615270249.

It is an arithmetic number, because the mean of its divisors is an integer number (615270249).

Almost surely, 2^1230540497 is an apocalyptic number.

It is an amenable number.

1230540497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230540497 is an equidigital number, since it uses as much as digits as its factorization.

1230540497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1230540497 is about 35079.0606630223. The cubic root of 1230540497 is about 1071.5981873024.

The spelling of 1230540497 in words is "one billion, two hundred thirty million, five hundred forty thousand, four hundred ninety-seven".