2145401334 has 12 divisors (see below), whose sum is σ = 4648369596. Its totient is φ = 715133772.

The previous prime is 2145401333. The next prime is 2145401371. The reversal of 2145401334 is 4331045412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2145401298 and 2145401307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145401333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59594464 + ... + 59594499.

It is an arithmetic number, because the mean of its divisors is an integer number (387364133).

Almost surely, 2^2145401334 is an apocalyptic number.

2145401334 is an abundant number, since it is smaller than the sum of its proper divisors (2502968262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145401334 is a wasteful number, since it uses less digits than its factorization.

2145401334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119188971 (or 119188968 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2145401334 is about 46318.4772418092. The cubic root of 2145401334 is about 1289.7420179978.

Adding to 2145401334 its reverse (4331045412), we get a palindrome (6476446746).

The spelling of 2145401334 in words is "two billion, one hundred forty-five million, four hundred one thousand, three hundred thirty-four".