1520164245 has 16 divisors (see below), whose sum is σ = 2433370752. Its totient is φ = 810384960.

The previous prime is 1520164241. The next prime is 1520164297. The reversal of 1520164245 is 5424610251.

It is not a de Polignac number, because 1520164245 - 2² = 1520164241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520164241) 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 15 ways as a sum of consecutive naturals, for example, 12739 + ... + 56591.

It is an arithmetic number, because the mean of its divisors is an integer number (152085672).

Almost surely, 2^1520164245 is an apocalyptic number.

1520164245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1520164245 is a deficient number, since it is larger than the sum of its proper divisors (913206507).

1520164245 is a wasteful number, since it uses less digits than its factorization.

1520164245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46172.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1520164245 is about 38989.2837200172. The cubic root of 1520164245 is about 1149.8208277887.

Adding to 1520164245 its reverse (5424610251), we get a palindrome (6944774496).

The spelling of 1520164245 in words is "one billion, five hundred twenty million, one hundred sixty-four thousand, two hundred forty-five".