2145354164 has 12 divisors (see below), whose sum is σ = 3917603424. Its totient is φ = 1026038904.

The previous prime is 2145354121. The next prime is 2145354179. The reversal of 2145354164 is 4614535412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11659442 + ... + 11659625.

It is an arithmetic number, because the mean of its divisors is an integer number (326466952).

Almost surely, 2^2145354164 is an apocalyptic number.

It is an amenable number.

2145354164 is a deficient number, since it is larger than the sum of its proper divisors (1772249260).

2145354164 is a wasteful number, since it uses less digits than its factorization.

2145354164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23319094 (or 23319092 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 2145354164 is about 46317.9680469686. The cubic root of 2145354164 is about 1289.7325655975.

Adding to 2145354164 its reverse (4614535412), we get a palindrome (6759889576).

The spelling of 2145354164 in words is "two billion, one hundred forty-five million, three hundred fifty-four thousand, one hundred sixty-four".