191430053430625 has 15 divisors (see below), whose sum is σ = 239211426998863. Its totient is φ = 153143766028000.

The previous prime is 191430053430619. The next prime is 191430053430631. The reversal of 191430053430625 is 526034350034191.

The square root of 191430053430625 is 13835825.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (191430053430619) and next prime (191430053430631).

It can be written as a sum of positive squares in 7 ways, for example, as 146375565424929 + 45054488005696 = 12098577^2 + 6712264^2 .

It is not a de Polignac number, because 191430053430625 - 2³ = 191430053430617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 345618909 + ... + 346172341.

Almost surely, 2^{191430053430625} is an apocalyptic number.

191430053430625 is the 13835825-th square number.

191430053430625 is the 6917913-rd centered octagonal number.

It is an amenable number.

191430053430625 is a deficient number, since it is larger than the sum of its proper divisors (47781373568238).

191430053430625 is an frugal number, since it uses more digits than its factorization.

191430053430625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106886 (or 553438 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 191430053430625 in words is "one hundred ninety-one trillion, four hundred thirty billion, fifty-three million, four hundred thirty thousand, six hundred twenty-five".