1875121045 has 16 divisors (see below), whose sum is σ = 2588860800. Its totient is φ = 1277164224.

The previous prime is 1875121043. The next prime is 1875121049. The reversal of 1875121045 is 5401215781.

It is not a de Polignac number, because 1875121045 - 2¹ = 1875121043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1875121045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1875121043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174567 + ... + 184996.

It is an arithmetic number, because the mean of its divisors is an integer number (161803800).

Almost surely, 2^1875121045 is an apocalyptic number.

It is an amenable number.

1875121045 is a deficient number, since it is larger than the sum of its proper divisors (713739755).

1875121045 is a wasteful number, since it uses less digits than its factorization.

1875121045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359724.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 1875121045 is about 43302.6678739313. The cubic root of 1875121045 is about 1233.1325719401.

The spelling of 1875121045 in words is "one billion, eight hundred seventy-five million, one hundred twenty-one thousand, forty-five".