102915848025 has 45 divisors (see below), whose sum is σ = 190662471021. Its totient is φ = 54880752960.

The previous prime is 102915848023. The next prime is 102915848029. The reversal of 102915848025 is 520848519201.

The square root of 102915848025 is 320805.

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

102915848025 is a `hidden beast` number, since 10 + 2 + 9 + 158 + 480 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5774409 + 102910073616 = 2403^2 + 320796^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 102915848025 - 2¹ = 102915848023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (102915848023) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 14432661 + ... + 14439789.

Almost surely, 2^102915848025 is an apocalyptic number.

102915848025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102915848025 is the 320805-th square number.

102915848025 is the 160403-rd centered octagonal number.

It is an amenable number.

102915848025 is a deficient number, since it is larger than the sum of its proper divisors (87746622996).

102915848025 is an frugal number, since it uses more digits than its factorization.

102915848025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14280 (or 7137 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 102915848025 in words is "one hundred two billion, nine hundred fifteen million, eight hundred forty-eight thousand, twenty-five".