1345172130 has 32 divisors (see below), whose sum is σ = 3587126400. Its totient is φ = 358712496.

The previous prime is 1345172117. The next prime is 1345172137. The reversal of 1345172130 is 312715431.

1345172130 is a `hidden beast` number, since 13 + 4 + 517 + 2 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1345172094 and 1345172103.

It is not an unprimeable number, because it can be changed into a prime (1345172137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490790 + ... + 2491329.

It is an arithmetic number, because the mean of its divisors is an integer number (112097700).

Almost surely, 2^1345172130 is an apocalyptic number.

1345172130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1345172130 is an abundant number, since it is smaller than the sum of its proper divisors (2241954270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345172130 is a wasteful number, since it uses less digits than its factorization.

1345172130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982135 (or 4982129 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1345172130 is about 36676.5883091653. The cubic root of 1345172130 is about 1103.8903925918.

Adding to 1345172130 its reverse (312715431), we get a palindrome (1657887561).

The spelling of 1345172130 in words is "one billion, three hundred forty-five million, one hundred seventy-two thousand, one hundred thirty".