2130340409 has 2 divisors, whose sum is σ = 2130340410. Its totient is φ = 2130340408.

The previous prime is 2130340349. The next prime is 2130340483. The reversal of 2130340409 is 9040430312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1660318009 + 470022400 = 40747^2 + 21680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130340409 is a prime.

It is not a weakly prime, because it can be changed into another prime (2130340309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065170204 + 1065170205.

It is an arithmetic number, because the mean of its divisors is an integer number (1065170205).

Almost surely, 2^2130340409 is an apocalyptic number.

It is an amenable number.

2130340409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130340409 is an equidigital number, since it uses as much as digits as its factorization.

2130340409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2130340409 is about 46155.6108073547. The cubic root of 2130340409 is about 1286.7168900889.

The spelling of 2130340409 in words is "two billion, one hundred thirty million, three hundred forty thousand, four hundred nine".