1042551687 has 16 divisors (see below), whose sum is σ = 1396581120. Its totient is φ = 691787712.

The previous prime is 1042551677. The next prime is 1042551737. The reversal of 1042551687 is 7861552401.

It is not a de Polignac number, because 1042551687 - 2¹⁸ = 1042289543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042551637) 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, 811948 + ... + 813230.

It is an arithmetic number, because the mean of its divisors is an integer number (87286320).

Almost surely, 2^1042551687 is an apocalyptic number.

1042551687 is a deficient number, since it is larger than the sum of its proper divisors (354029433).

1042551687 is a wasteful number, since it uses less digits than its factorization.

1042551687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1042551687 is about 32288.5689834653. The cubic root of 1042551687 is about 1013.9873378591.

The spelling of 1042551687 in words is "one billion, forty-two million, five hundred fifty-one thousand, six hundred eighty-seven".