1045172487 has 8 divisors (see below), whose sum is σ = 1398488704. Its totient is φ = 694318968.

The previous prime is 1045172467. The next prime is 1045172519. The reversal of 1045172487 is 7842715401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1045172487 - 2⁶ = 1045172423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045172467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614683 + ... + 616380.

It is an arithmetic number, because the mean of its divisors is an integer number (174811088).

Almost surely, 2^1045172487 is an apocalyptic number.

1045172487 is a deficient number, since it is larger than the sum of its proper divisors (353316217).

1045172487 is a wasteful number, since it uses less digits than its factorization.

1045172487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231349.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 1045172487 is about 32329.1275323044. The cubic root of 1045172487 is about 1014.8362915535.

Adding to 1045172487 its reverse (7842715401), we get a palindrome (8887887888).

The spelling of 1045172487 in words is "one billion, forty-five million, one hundred seventy-two thousand, four hundred eighty-seven".