101903201 has 4 divisors (see below), whose sum is σ = 101970372. Its totient is φ = 101836032.

The previous prime is 101903189. The next prime is 101903237. The reversal of 101903201 is 102309101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102309101 = 97 ⋅1054733.

It can be written as a sum of positive squares in 2 ways, for example, as 63760225 + 38142976 = 7985^2 + 6176^2 .

It is a cyclic number.

It is not a de Polignac number, because 101903201 - 2¹⁴ = 101886817 is a prime.

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 101903201.

It is not an unprimeable number, because it can be changed into a prime (101905201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31256 + ... + 34361.

It is an arithmetic number, because the mean of its divisors is an integer number (25492593).

Almost surely, 2^101903201 is an apocalyptic number.

It is an amenable number.

101903201 is a deficient number, since it is larger than the sum of its proper divisors (67171).

101903201 is an equidigital number, since it uses as much as digits as its factorization.

101903201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67170.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 101903201 is about 10094.7115362451. The cubic root of 101903201 is about 467.0850231964.

The spelling of 101903201 in words is "one hundred one million, nine hundred three thousand, two hundred one".