3145440253 has 8 divisors (see below), whose sum is σ = 3425162400. Its totient is φ = 2877135408.

The previous prime is 3145440227. The next prime is 3145440257. The reversal of 3145440253 is 3520445413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3145440253 - 2⁹ = 3145439741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145440257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2853751 + ... + 2854852.

It is an arithmetic number, because the mean of its divisors is an integer number (428145300).

Almost surely, 2^3145440253 is an apocalyptic number.

It is an amenable number.

3145440253 is a deficient number, since it is larger than the sum of its proper divisors (279722147).

3145440253 is a wasteful number, since it uses less digits than its factorization.

3145440253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5708651.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 3145440253 is about 56084.2246358100. The cubic root of 3145440253 is about 1465.1895529871.

Adding to 3145440253 its reverse (3520445413), we get a palindrome (6665885666).

The spelling of 3145440253 in words is "three billion, one hundred forty-five million, four hundred forty thousand, two hundred fifty-three".