1973129115 has 16 divisors (see below), whose sum is σ = 3265869600. Its totient is φ = 1016047872.

The previous prime is 1973129111. The next prime is 1973129149. The reversal of 1973129115 is 5119213791.

It is not a de Polignac number, because 1973129115 - 2² = 1973129111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1973129111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2267530 + ... + 2268399.

It is an arithmetic number, because the mean of its divisors is an integer number (204116850).

Almost surely, 2^1973129115 is an apocalyptic number.

1973129115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1973129115 is a deficient number, since it is larger than the sum of its proper divisors (1292740485).

1973129115 is a wasteful number, since it uses less digits than its factorization.

1973129115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535966.

The product of its digits is 17010, while the sum is 39.

The square root of 1973129115 is about 44419.9179985736. The cubic root of 1973129115 is about 1254.2530573240.

The spelling of 1973129115 in words is "one billion, nine hundred seventy-three million, one hundred twenty-nine thousand, one hundred fifteen".