1530136625 has 8 divisors (see below), whose sum is σ = 1909610664. Its totient is φ = 1224109200.

The previous prime is 1530136613. The next prime is 1530136637. The reversal of 1530136625 is 5266310351.

It is an interprime number because it is at equal distance from previous prime (1530136613) and next prime (1530136637).

It can be written as a sum of positive squares in 4 ways, for example, as 4765489 + 1525371136 = 2183^2 + 39056^2 .

It is not a de Polignac number, because 1530136625 - 2⁴ = 1530136609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1530136591 and 1530136600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6120422 + ... + 6120671.

It is an arithmetic number, because the mean of its divisors is an integer number (238701333).

Almost surely, 2^1530136625 is an apocalyptic number.

It is an amenable number.

1530136625 is a deficient number, since it is larger than the sum of its proper divisors (379474039).

1530136625 is an equidigital number, since it uses as much as digits as its factorization.

1530136625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241108 (or 12241098 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1530136625 is about 39116.9608354228. The cubic root of 1530136625 is about 1152.3296504777.

Adding to 1530136625 its reverse (5266310351), we get a palindrome (6796446976).

The spelling of 1530136625 in words is "one billion, five hundred thirty million, one hundred thirty-six thousand, six hundred twenty-five".