2145404562 has 32 divisors (see below), whose sum is σ = 4921903104. Its totient is φ = 610707600.

The previous prime is 2145404537. The next prime is 2145404567. The reversal of 2145404562 is 2654045412.

2145404562 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2145404567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82864 + ... + 105627.

It is an arithmetic number, because the mean of its divisors is an integer number (153809472).

Almost surely, 2^2145404562 is an apocalyptic number.

2145404562 is an abundant number, since it is smaller than the sum of its proper divisors (2776498542).

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

2145404562 is a wasteful number, since it uses less digits than its factorization.

2145404562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188774.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 2145404562 is about 46318.5120875013. The cubic root of 2145404562 is about 1289.7426648519.

Adding to 2145404562 its reverse (2654045412), we get a palindrome (4799449974).

The spelling of 2145404562 in words is "two billion, one hundred forty-five million, four hundred four thousand, five hundred sixty-two".