1537131245 has 32 divisors (see below), whose sum is σ = 2109149280. Its totient is φ = 1065369600.

The previous prime is 1537131223. The next prime is 1537131247. The reversal of 1537131245 is 5421317351.

It can be written as a sum of positive squares in 16 ways, for example, as 324072004 + 1213059241 = 18002^2 + 34829^2 .

It is not a de Polignac number, because 1537131245 - 2¹⁸ = 1536869101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1537131247) 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 31 ways as a sum of consecutive naturals, for example, 441371 + ... + 444839.

It is an arithmetic number, because the mean of its divisors is an integer number (65910915).

Almost surely, 2^1537131245 is an apocalyptic number.

It is an amenable number.

1537131245 is a deficient number, since it is larger than the sum of its proper divisors (572018035).

1537131245 is a wasteful number, since it uses less digits than its factorization.

1537131245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905.

The product of its digits is 12600, while the sum is 32.

The square root of 1537131245 is about 39206.2653794008. The cubic root of 1537131245 is about 1154.0828397951.

Adding to 1537131245 its reverse (5421317351), we get a palindrome (6958448596).

The spelling of 1537131245 in words is "one billion, five hundred thirty-seven million, one hundred thirty-one thousand, two hundred forty-five".