1431247051 has 16 divisors (see below), whose sum is σ = 1634084928. Its totient is φ = 1241856000.

The previous prime is 1431247043. The next prime is 1431247057. The reversal of 1431247051 is 1507421341.

It is a cyclic number.

It is not a de Polignac number, because 1431247051 - 2³ = 1431247043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431247057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191026 + ... + 198376.

It is an arithmetic number, because the mean of its divisors is an integer number (102130308).

Almost surely, 2^1431247051 is an apocalyptic number.

1431247051 is a deficient number, since it is larger than the sum of its proper divisors (202837877).

1431247051 is a wasteful number, since it uses less digits than its factorization.

1431247051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8262.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1431247051 is about 37831.8259009528. The cubic root of 1431247051 is about 1126.9505718815.

Adding to 1431247051 its reverse (1507421341), we get a palindrome (2938668392).

The spelling of 1431247051 in words is "one billion, four hundred thirty-one million, two hundred forty-seven thousand, fifty-one".