1530113957 has 4 divisors (see below), whose sum is σ = 1530524556. Its totient is φ = 1529703360.

The previous prime is 1530113911. The next prime is 1530113969. The reversal of 1530113957 is 7593110351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7593110351 = 70507 ⋅107693.

It can be written as a sum of positive squares in 2 ways, for example, as 838739521 + 691374436 = 28961^2 + 26294^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530113957 - 2²⁰ = 1529065381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530113857) 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 3 ways as a sum of consecutive naturals, for example, 199658 + ... + 207179.

It is an arithmetic number, because the mean of its divisors is an integer number (382631139).

Almost surely, 2^1530113957 is an apocalyptic number.

It is an amenable number.

1530113957 is a deficient number, since it is larger than the sum of its proper divisors (410599).

1530113957 is an equidigital number, since it uses as much as digits as its factorization.

1530113957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410598.

The product of its (nonzero) digits is 14175, while the sum is 35.

The square root of 1530113957 is about 39116.6710879134. The cubic root of 1530113957 is about 1152.3239601062.

The spelling of 1530113957 in words is "one billion, five hundred thirty million, one hundred thirteen thousand, nine hundred fifty-seven".