1421156754 has 48 divisors (see below), whose sum is σ = 3202542720. Its totient is φ = 455064480.

The previous prime is 1421156749. The next prime is 1421156771. The reversal of 1421156754 is 4576511241.

1421156754 is a `hidden beast` number, since 1 + 42 + 1 + 1 + 567 + 54 = 666.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 39109 + ... + 66119.

It is an arithmetic number, because the mean of its divisors is an integer number (66719640).

Almost surely, 2^1421156754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421156754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601271360).

1421156754 is an abundant number, since it is smaller than the sum of its proper divisors (1781385966).

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

1421156754 is a wasteful number, since it uses less digits than its factorization.

1421156754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27135 (or 27132 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 1421156754 is about 37698.2327702507. The cubic root of 1421156754 is about 1124.2959885671.

Adding to 1421156754 its reverse (4576511241), we get a palindrome (5997667995).

The spelling of 1421156754 in words is "one billion, four hundred twenty-one million, one hundred fifty-six thousand, seven hundred fifty-four".