1045921375 has 8 divisors (see below), whose sum is σ = 1305310032. Its totient is φ = 836737000.

The previous prime is 1045921363. The next prime is 1045921399. The reversal of 1045921375 is 5731295401.

It is not a de Polignac number, because 1045921375 - 2¹⁵ = 1045888607 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 7 ways as a sum of consecutive naturals, for example, 4183561 + ... + 4183810.

It is an arithmetic number, because the mean of its divisors is an integer number (163163754).

Almost surely, 2^1045921375 is an apocalyptic number.

1045921375 is a deficient number, since it is larger than the sum of its proper divisors (259388657).

1045921375 is an frugal number, since it uses more digits than its factorization.

1045921375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367386 (or 8367376 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1045921375 is about 32340.7077071606. The cubic root of 1045921375 is about 1015.0786175121.

The spelling of 1045921375 in words is "one billion, forty-five million, nine hundred twenty-one thousand, three hundred seventy-five".