1087252761 has 16 divisors (see below), whose sum is σ = 1658726784. Its totient is φ = 620552064.

The previous prime is 1087252741. The next prime is 1087252819. The reversal of 1087252761 is 1672527801.

It is not a de Polignac number, because 1087252761 - 2⁷ = 1087252633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1087252741) 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, 12210 + ... + 48203.

It is an arithmetic number, because the mean of its divisors is an integer number (103670424).

Almost surely, 2^1087252761 is an apocalyptic number.

It is an amenable number.

1087252761 is a deficient number, since it is larger than the sum of its proper divisors (571474023).

1087252761 is an equidigital number, since it uses as much as digits as its factorization.

1087252761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61280.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1087252761 is about 32973.5160545551. The cubic root of 1087252761 is about 1028.2771213225.

The spelling of 1087252761 in words is "one billion, eighty-seven million, two hundred fifty-two thousand, seven hundred sixty-one".