101001025 has 6 divisors (see below), whose sum is σ = 125241302. Its totient is φ = 80800800.

The previous prime is 101001013. The next prime is 101001037. The reversal of 101001025 is 520100101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101001013) and next prime (101001037).

It can be written as a sum of positive squares in 3 ways, for example, as 29073664 + 71927361 = 5392^2 + 8481^2 .

It is not a de Polignac number, because 101001025 - 2⁵ = 101000993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2019996 + ... + 2020045.

Almost surely, 2^101001025 is an apocalyptic number.

It is an amenable number.

101001025 is a deficient number, since it is larger than the sum of its proper divisors (24240277).

101001025 is an equidigital number, since it uses as much as digits as its factorization.

101001025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040051 (or 4040046 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 101001025 is about 10049.9266166475. The cubic root of 101001025 is about 465.7025261661.

Adding to 101001025 its reverse (520100101), we get a palindrome (621101126).

The spelling of 101001025 in words is "one hundred one million, one thousand, twenty-five".