2354145538 has 4 divisors (see below), whose sum is σ = 3531218310. Its totient is φ = 1177072768.

The previous prime is 2354145511. The next prime is 2354145539. The reversal of 2354145538 is 8355414532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2317748449 + 36397089 = 48143^2 + 6033^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2354145538.

It is not an unprimeable number, because it can be changed into a prime (2354145539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 588536383 + ... + 588536386.

Almost surely, 2^2354145538 is an apocalyptic number.

2354145538 is a deficient number, since it is larger than the sum of its proper divisors (1177072772).

2354145538 is a wasteful number, since it uses less digits than its factorization.

2354145538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177072771.

The product of its digits is 288000, while the sum is 40.

The square root of 2354145538 is about 48519.5376935931. The cubic root of 2354145538 is about 1330.2842097130.

The spelling of 2354145538 in words is "two billion, three hundred fifty-four million, one hundred forty-five thousand, five hundred thirty-eight".