1431136136 has 8 divisors (see below), whose sum is σ = 2683380270. Its totient is φ = 715568064.

The previous prime is 1431136127. The next prime is 1431136163. The reversal of 1431136136 is 6316311341.

It can be written as a sum of positive squares in only one way, i.e., 1352032900 + 79103236 = 36770^2 + 8894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1431136099 and 1431136108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89446001 + ... + 89446016.

Almost surely, 2^1431136136 is an apocalyptic number.

It is an amenable number.

1431136136 is a deficient number, since it is larger than the sum of its proper divisors (1252244134).

1431136136 is a wasteful number, since it uses less digits than its factorization.

1431136136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178892023 (or 178892019 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 1431136136 is about 37830.3599771401. The cubic root of 1431136136 is about 1126.9214599842.

Adding to 1431136136 its reverse (6316311341), we get a palindrome (7747447477).

The spelling of 1431136136 in words is "one billion, four hundred thirty-one million, one hundred thirty-six thousand, one hundred thirty-six".