1890125530 has 16 divisors (see below), whose sum is σ = 3410717544. Its totient is φ = 754163200.

The previous prime is 1890125527. The next prime is 1890125599. The reversal of 1890125530 is 355210981.

It can be written as a sum of positive squares in 4 ways, for example, as 1886772969 + 3352561 = 43437^2 + 1831^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231667 + ... + 239686.

Almost surely, 2^1890125530 is an apocalyptic number.

1890125530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1890125530 is a deficient number, since it is larger than the sum of its proper divisors (1520592014).

1890125530 is a wasteful number, since it uses less digits than its factorization.

1890125530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471761.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1890125530 is about 43475.5739467577. The cubic root of 1890125530 is about 1236.4129620849.

The spelling of 1890125530 in words is "one billion, eight hundred ninety million, one hundred twenty-five thousand, five hundred thirty".