1890540125 has 12 divisors (see below), whose sum is σ = 2360000916. Its totient is φ = 1512043200.

The previous prime is 1890540103. The next prime is 1890540143. The reversal of 1890540125 is 5210450981.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 250209124 + 1640331001 = 15818^2 + 40501^2 .

It is not a de Polignac number, because 1890540125 - 2⁶ = 1890540061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484181 + ... + 488069.

It is an arithmetic number, because the mean of its divisors is an integer number (196666743).

Almost surely, 2^1890540125 is an apocalyptic number.

It is an amenable number.

1890540125 is a deficient number, since it is larger than the sum of its proper divisors (469460791).

1890540125 is an frugal number, since it uses more digits than its factorization.

1890540125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7793 (or 3894 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 1890540125 is about 43480.3418224834. The cubic root of 1890540125 is about 1236.5033569905.

The spelling of 1890540125 in words is "one billion, eight hundred ninety million, five hundred forty thousand, one hundred twenty-five".