2145342504 has 32 divisors (see below), whose sum is σ = 5415433920. Its totient is φ = 708170496.

The previous prime is 2145342499. The next prime is 2145342509. The reversal of 2145342504 is 4052435412.

It is an interprime number because it is at equal distance from previous prime (2145342499) and next prime (2145342509).

It is not an unprimeable number, because it can be changed into a prime (2145342509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431457 + ... + 436400.

It is an arithmetic number, because the mean of its divisors is an integer number (169232310).

Almost surely, 2^2145342504 is an apocalyptic number.

2145342504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2145342504 is an abundant number, since it is smaller than the sum of its proper divisors (3270091416).

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

2145342504 is a wasteful number, since it uses less digits than its factorization.

2145342504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867969 (or 867965 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2145342504 is about 46317.8421777181. The cubic root of 2145342504 is about 1289.7302290277.

Adding to 2145342504 its reverse (4052435412), we get a palindrome (6197777916).

The spelling of 2145342504 in words is "two billion, one hundred forty-five million, three hundred forty-two thousand, five hundred four".