2145225513 has 32 divisors (see below), whose sum is σ = 2984509440. Its totient is φ = 1369149120.

The previous prime is 2145225499. The next prime is 2145225527. The reversal of 2145225513 is 3155225412.

It is an interprime number because it is at equal distance from previous prime (2145225499) and next prime (2145225527).

It is not a de Polignac number, because 2145225513 - 2⁶ = 2145225449 is a prime.

It is a super-2 number, since 2×2145225513² = 9203985003252226338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145225113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5600920 + ... + 5601302.

It is an arithmetic number, because the mean of its divisors is an integer number (93265920).

Almost surely, 2^2145225513 is an apocalyptic number.

It is an amenable number.

2145225513 is a deficient number, since it is larger than the sum of its proper divisors (839283927).

2145225513 is a wasteful number, since it uses less digits than its factorization.

2145225513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its digits is 12000, while the sum is 30.

The square root of 2145225513 is about 46316.5792454495. The cubic root of 2145225513 is about 1289.7067845083.

The spelling of 2145225513 in words is "two billion, one hundred forty-five million, two hundred twenty-five thousand, five hundred thirteen".