2152124542 has 4 divisors (see below), whose sum is σ = 3228186816. Its totient is φ = 1076062270.

The previous prime is 2152124497. The next prime is 2152124543. The reversal of 2152124542 is 2454212512.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2152124542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152124543) 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, 538031134 + ... + 538031137.

It is an arithmetic number, because the mean of its divisors is an integer number (807046704).

Almost surely, 2^2152124542 is an apocalyptic number.

2152124542 is a deficient number, since it is larger than the sum of its proper divisors (1076062274).

2152124542 is a wasteful number, since it uses less digits than its factorization.

2152124542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076062273.

The product of its digits is 6400, while the sum is 28.

The square root of 2152124542 is about 46390.9963462739. The cubic root of 2152124542 is about 1291.0878674638.

The spelling of 2152124542 in words is "two billion, one hundred fifty-two million, one hundred twenty-four thousand, five hundred forty-two".