1431457156 has 6 divisors (see below), whose sum is σ = 2505050030. Its totient is φ = 715728576.

The previous prime is 1431457151. The next prime is 1431457163. The reversal of 1431457156 is 6517541341.

It can be written as a sum of positive squares in only one way, i.e., 1316238400 + 115218756 = 36280^2 + 10734^2 .

It is not an unprimeable number, because it can be changed into a prime (1431457151) by changing a digit.

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 as a sum of consecutive naturals, namely, 178932141 + ... + 178932148.

Almost surely, 2^1431457156 is an apocalyptic number.

It is an amenable number.

1431457156 is a deficient number, since it is larger than the sum of its proper divisors (1073592874).

1431457156 is a wasteful number, since it uses less digits than its factorization.

1431457156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357864293 (or 357864291 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 1431457156 is about 37834.6026277533. The cubic root of 1431457156 is about 1127.0057140888.

Adding to 1431457156 its reverse (6517541341), we get a palindrome (7948998497).

The spelling of 1431457156 in words is "one billion, four hundred thirty-one million, four hundred fifty-seven thousand, one hundred fifty-six".