1245142431 has 48 divisors (see below), whose sum is σ = 2002684320. Its totient is φ = 740655360.

The previous prime is 1245142411. The next prime is 1245142453. The reversal of 1245142431 is 1342415421.

1245142431 is a `hidden beast` number, since 124 + 514 + 24 + 3 + 1 = 666.

It is not a de Polignac number, because 1245142431 - 2⁵ = 1245142399 is a prime.

It is a super-2 number, since 2×1245142431² = 3100759346953179522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1245142395 and 1245142404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245142411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 419605 + ... + 422561.

It is an arithmetic number, because the mean of its divisors is an integer number (41722590).

Almost surely, 2^1245142431 is an apocalyptic number.

1245142431 is a deficient number, since it is larger than the sum of its proper divisors (757541889).

1245142431 is a wasteful number, since it uses less digits than its factorization.

1245142431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096 (or 3093 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1245142431 is about 35286.5757902350. The cubic root of 1245142431 is about 1075.8201582466.

Adding to 1245142431 its reverse (1342415421), we get a palindrome (2587557852).

The spelling of 1245142431 in words is "one billion, two hundred forty-five million, one hundred forty-two thousand, four hundred thirty-one".