101662225 has 12 divisors (see below), whose sum is σ = 144070144. Its totient is φ = 69711120.

The previous prime is 101662219. The next prime is 101662241. The reversal of 101662225 is 522266101.

It is not a de Polignac number, because 101662225 - 2⁷ = 101662097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101662225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290289 + ... + 290638.

Almost surely, 2^101662225 is an apocalyptic number.

It is an amenable number.

101662225 is a deficient number, since it is larger than the sum of its proper divisors (42407919).

101662225 is an equidigital number, since it uses as much as digits as its factorization.

101662225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580944 (or 580939 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 101662225 is about 10082.7687169745. The cubic root of 101662225 is about 466.7165522068.

The spelling of 101662225 in words is "one hundred one million, six hundred sixty-two thousand, two hundred twenty-five".