2151435042 has 96 divisors (see below), whose sum is σ = 5029330176. Its totient is φ = 663062400.

The previous prime is 2151435031. The next prime is 2151435053. The reversal of 2151435042 is 2405341512.

2151435042 is a `hidden beast` number, since 2 + 15 + 143 + 504 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2151435031) and next prime (2151435053).

It is a junction number, because it is equal to n+sod(n) for n = 2151434997 and 2151435015.

It is an unprimeable number.

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 in 47 ways as a sum of consecutive naturals, for example, 1557192 + ... + 1558572.

It is an arithmetic number, because the mean of its divisors is an integer number (52388856).

Almost surely, 2^2151435042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2151435042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2514665088).

2151435042 is an abundant number, since it is smaller than the sum of its proper divisors (2877895134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2151435042 is a wasteful number, since it uses less digits than its factorization.

2151435042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2151435042 is about 46383.5643520418. The cubic root of 2151435042 is about 1290.9499726916.

Adding to 2151435042 its reverse (2405341512), we get a palindrome (4556776554).

The spelling of 2151435042 in words is "two billion, one hundred fifty-one million, four hundred thirty-five thousand, forty-two".