1545022013 has 2 divisors, whose sum is σ = 1545022014. Its totient is φ = 1545022012.

The previous prime is 1545022001. The next prime is 1545022057. The reversal of 1545022013 is 3102205451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1020291364 + 524730649 = 31942^2 + 22907^2 .

It is a cyclic number.

It is not a de Polignac number, because 1545022013 - 2⁴ = 1545021997 is a prime.

It is a super-3 number, since 3×1545022013³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1545022013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1545022093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772511006 + 772511007.

It is an arithmetic number, because the mean of its divisors is an integer number (772511007).

Almost surely, 2^1545022013 is an apocalyptic number.

It is an amenable number.

1545022013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545022013 is an equidigital number, since it uses as much as digits as its factorization.

1545022013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1545022013 is about 39306.7680304550. The cubic root of 1545022013 is about 1156.0542744699.

Adding to 1545022013 its reverse (3102205451), we get a palindrome (4647227464).

The spelling of 1545022013 in words is "one billion, five hundred forty-five million, twenty-two thousand, thirteen".