2013145450 has 12 divisors (see below), whose sum is σ = 3744450630. Its totient is φ = 805258160.

The previous prime is 2013145441. The next prime is 2013145489. The reversal of 2013145450 is 545413102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1803446089 + 209699361 = 42467^2 + 14481^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20131405 + ... + 20131504.

Almost surely, 2^2013145450 is an apocalyptic number.

2013145450 is a deficient number, since it is larger than the sum of its proper divisors (1731305180).

2013145450 is a wasteful number, since it uses less digits than its factorization.

2013145450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40262921 (or 40262916 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2013145450 is about 44868.0894400464. The cubic root of 2013145450 is about 1262.6753956885.

Adding to 2013145450 its reverse (545413102), we get a palindrome (2558558552).

The spelling of 2013145450 in words is "two billion, thirteen million, one hundred forty-five thousand, four hundred fifty".