2130665397 has 32 divisors (see below), whose sum is σ = 3286443264. Its totient is φ = 1202688000.

The previous prime is 2130665389. The next prime is 2130665413. The reversal of 2130665397 is 7935660312.

It is not a de Polignac number, because 2130665397 - 2³ = 2130665389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130665597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1222947 + ... + 1224687.

It is an arithmetic number, because the mean of its divisors is an integer number (102701352).

Almost surely, 2^2130665397 is an apocalyptic number.

It is an amenable number.

2130665397 is a deficient number, since it is larger than the sum of its proper divisors (1155777867).

2130665397 is a wasteful number, since it uses less digits than its factorization.

2130665397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 2130665397 is about 46159.1312418247. The cubic root of 2130665397 is about 1286.7823172360.

The spelling of 2130665397 in words is "two billion, one hundred thirty million, six hundred sixty-five thousand, three hundred ninety-seven".