1520022413 has 32 divisors (see below), whose sum is σ = 1956820992. Its totient is φ = 1147608000.

The previous prime is 1520022403. The next prime is 1520022421. The reversal of 1520022413 is 3142200251.

It is not a de Polignac number, because 1520022413 - 2¹⁰ = 1520021389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520022403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1445738 + ... + 1446788.

It is an arithmetic number, because the mean of its divisors is an integer number (61150656).

Almost surely, 2^1520022413 is an apocalyptic number.

1520022413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1520022413 is a deficient number, since it is larger than the sum of its proper divisors (436798579).

1520022413 is a wasteful number, since it uses less digits than its factorization.

1520022413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1520022413 is about 38987.4648188363. The cubic root of 1520022413 is about 1149.7850670783.

Adding to 1520022413 its reverse (3142200251), we get a palindrome (4662222664).

The spelling of 1520022413 in words is "one billion, five hundred twenty million, twenty-two thousand, four hundred thirteen".