2142046451 has 8 divisors (see below), whose sum is σ = 2150413104. Its totient is φ = 2133695520.

The previous prime is 2142046447. The next prime is 2142046471. The reversal of 2142046451 is 1546402412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2142046451 - 2² = 2142046447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142046471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318641 + ... + 325293.

It is an arithmetic number, because the mean of its divisors is an integer number (268801638).

Almost surely, 2^2142046451 is an apocalyptic number.

2142046451 is a deficient number, since it is larger than the sum of its proper divisors (8366653).

2142046451 is an equidigital number, since it uses as much as digits as its factorization.

2142046451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7861.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 2142046451 is about 46282.2476874233. The cubic root of 2142046451 is about 1289.0693869015.

Adding to 2142046451 its reverse (1546402412), we get a palindrome (3688448863).

The spelling of 2142046451 in words is "two billion, one hundred forty-two million, forty-six thousand, four hundred fifty-one".