1431263142 has 16 divisors (see below), whose sum is σ = 3180584880. Its totient is φ = 477087696.

The previous prime is 1431263117. The next prime is 1431263147. The reversal of 1431263142 is 2413621341.

It is a happy number.

1431263142 is a `hidden beast` number, since 14 + 3 + 12 + 631 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431263147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13252383 + ... + 13252490.

It is an arithmetic number, because the mean of its divisors is an integer number (198786555).

Almost surely, 2^1431263142 is an apocalyptic number.

1431263142 is an abundant number, since it is smaller than the sum of its proper divisors (1749321738).

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

1431263142 is a wasteful number, since it uses less digits than its factorization.

1431263142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26504884 (or 26504878 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1431263142 is about 37832.0385652161. The cubic root of 1431263142 is about 1126.9547951668.

Adding to 1431263142 its reverse (2413621341), we get a palindrome (3844884483).

The spelling of 1431263142 in words is "one billion, four hundred thirty-one million, two hundred sixty-three thousand, one hundred forty-two".