2146451542 has 4 divisors (see below), whose sum is σ = 3219677316. Its totient is φ = 1073225770.

The previous prime is 2146451539. The next prime is 2146451621. The reversal of 2146451542 is 2451546412.

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 = 2146451498 and 2146451507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536612884 + ... + 536612887.

It is an arithmetic number, because the mean of its divisors is an integer number (804919329).

Almost surely, 2^2146451542 is an apocalyptic number.

2146451542 is a deficient number, since it is larger than the sum of its proper divisors (1073225774).

2146451542 is a wasteful number, since it uses less digits than its factorization.

2146451542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073225773.

The product of its digits is 38400, while the sum is 34.

The square root of 2146451542 is about 46329.8126695975. The cubic root of 2146451542 is about 1289.9524333962.

Adding to 2146451542 its reverse (2451546412), we get a palindrome (4597997954).

The spelling of 2146451542 in words is "two billion, one hundred forty-six million, four hundred fifty-one thousand, five hundred forty-two".