340450129997 has 2 divisors, whose sum is σ = 340450129998. Its totient is φ = 340450129996.

The previous prime is 340450129993. The next prime is 340450130021. The reversal of 340450129997 is 799921054043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189456490756 + 150993639241 = 435266^2 + 388579^2 .

It is a cyclic number.

It is not a de Polignac number, because 340450129997 - 2² = 340450129993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340450129993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170225064998 + 170225064999.

It is an arithmetic number, because the mean of its divisors is an integer number (170225064999).

Almost surely, 2^340450129997 is an apocalyptic number.

It is an amenable number.

340450129997 is a deficient number, since it is larger than the sum of its proper divisors (1).

340450129997 is an equidigital number, since it uses as much as digits as its factorization.

340450129997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 340450129997 in words is "three hundred forty billion, four hundred fifty million, one hundred twenty-nine thousand, nine hundred ninety-seven".