1537012225 has 12 divisors (see below), whose sum is σ = 2178166144. Its totient is φ = 1053951120.

The previous prime is 1537012219. The next prime is 1537012231. The reversal of 1537012225 is 5222107351.

It is an interprime number because it is at equal distance from previous prime (1537012219) and next prime (1537012231).

It is not a de Polignac number, because 1537012225 - 2⁵ = 1537012193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1537012193 and 1537012202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4391289 + ... + 4391638.

Almost surely, 2^1537012225 is an apocalyptic number.

It is an amenable number.

1537012225 is a deficient number, since it is larger than the sum of its proper divisors (641153919).

1537012225 is an equidigital number, since it uses as much as digits as its factorization.

1537012225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8782944 (or 8782939 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1537012225 is about 39204.7474803754. The cubic root of 1537012225 is about 1154.0530521663.

Adding to 1537012225 its reverse (5222107351), we get a palindrome (6759119576).

The spelling of 1537012225 in words is "one billion, five hundred thirty-seven million, twelve thousand, two hundred twenty-five".