2149373542 has 4 divisors (see below), whose sum is σ = 3224060316. Its totient is φ = 1074686770.

The previous prime is 2149373503. The next prime is 2149373543. The reversal of 2149373542 is 2453739412.

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

It is a junction number, because it is equal to n+sod(n) for n = 2149373495 and 2149373504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149373543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537343384 + ... + 537343387.

It is an arithmetic number, because the mean of its divisors is an integer number (806015079).

Almost surely, 2^2149373542 is an apocalyptic number.

2149373542 is a deficient number, since it is larger than the sum of its proper divisors (1074686774).

2149373542 is a wasteful number, since it uses less digits than its factorization.

2149373542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074686773.

The product of its digits is 181440, while the sum is 40.

The square root of 2149373542 is about 46361.3367149827. The cubic root of 2149373542 is about 1290.5375125144.

The spelling of 2149373542 in words is "two billion, one hundred forty-nine million, three hundred seventy-three thousand, five hundred forty-two".