190215125 has 16 divisors (see below), whose sum is σ = 251355312. Its totient is φ = 143219200.

The previous prime is 190215119. The next prime is 190215131. The reversal of 190215125 is 521512091.

It is an interprime number because it is at equal distance from previous prime (190215119) and next prime (190215131).

It can be written as a sum of positive squares in 8 ways, for example, as 47914084 + 142301041 = 6922^2 + 11929^2 .

It is a de Polignac number, because none of the positive numbers 2^k-190215125 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190215094 and 190215103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42632 + ... + 46881.

It is an arithmetic number, because the mean of its divisors is an integer number (15709707).

Almost surely, 2^190215125 is an apocalyptic number.

It is an amenable number.

190215125 is a deficient number, since it is larger than the sum of its proper divisors (61140187).

190215125 is an equidigital number, since it uses as much as digits as its factorization.

190215125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89545 (or 89535 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 190215125 is about 13791.8499484297. The cubic root of 190215125 is about 575.1065964945.

The spelling of 190215125 in words is "one hundred ninety million, two hundred fifteen thousand, one hundred twenty-five".