1406143136 has 48 divisors (see below), whose sum is σ = 2865881088. Its totient is φ = 678432000.

The previous prime is 1406143121. The next prime is 1406143139. The reversal of 1406143136 is 6313416041.

It is a junction number, because it is equal to n+sod(n) for n = 1406143099 and 1406143108.

It is not an unprimeable number, because it can be changed into a prime (1406143139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 378086 + ... + 381786.

It is an arithmetic number, because the mean of its divisors is an integer number (59705856).

Almost surely, 2^1406143136 is an apocalyptic number.

1406143136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1406143136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432940544).

1406143136 is an abundant number, since it is smaller than the sum of its proper divisors (1459737952).

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

1406143136 is a wasteful number, since it uses less digits than its factorization.

1406143136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1406143136 is about 37498.5751195962. The cubic root of 1406143136 is about 1120.3228066115.

Adding to 1406143136 its reverse (6313416041), we get a palindrome (7719559177).

The spelling of 1406143136 in words is "one billion, four hundred six million, one hundred forty-three thousand, one hundred thirty-six".