1087213507 has 4 divisors (see below), whose sum is σ = 1087288216. Its totient is φ = 1087138800.

The previous prime is 1087213499. The next prime is 1087213609. The reversal of 1087213507 is 7053127801.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7053127801 = 59 ⋅119544539.

It is a cyclic number.

It is not a de Polignac number, because 1087213507 - 2³ = 1087213499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087213007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7653 + ... + 47254.

It is an arithmetic number, because the mean of its divisors is an integer number (271822054).

Almost surely, 2^1087213507 is an apocalyptic number.

1087213507 is a deficient number, since it is larger than the sum of its proper divisors (74709).

1087213507 is an equidigital number, since it uses as much as digits as its factorization.

1087213507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74708.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 1087213507 is about 32972.9208139042. The cubic root of 1087213507 is about 1028.2647462560.

The spelling of 1087213507 in words is "one billion, eighty-seven million, two hundred thirteen thousand, five hundred seven".