1245423135 has 32 divisors (see below), whose sum is σ = 2206294272. Its totient is φ = 594823680.

The previous prime is 1245423133. The next prime is 1245423139. The reversal of 1245423135 is 5313245421.

It is not a de Polignac number, because 1245423135 - 2¹ = 1245423133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245423133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45274 + ... + 67383.

It is an arithmetic number, because the mean of its divisors is an integer number (68946696).

Almost surely, 2^1245423135 is an apocalyptic number.

1245423135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1245423135 is a deficient number, since it is larger than the sum of its proper divisors (960871137).

1245423135 is a wasteful number, since it uses less digits than its factorization.

1245423135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112743.

The product of its digits is 14400, while the sum is 30.

The square root of 1245423135 is about 35290.5530560234. The cubic root of 1245423135 is about 1075.9009962091.

Adding to 1245423135 its reverse (5313245421), we get a palindrome (6558668556).

The spelling of 1245423135 in words is "one billion, two hundred forty-five million, four hundred twenty-three thousand, one hundred thirty-five".