1087072241 has 4 divisors (see below), whose sum is σ = 1107583092. Its totient is φ = 1066561392.

The previous prime is 1087072229. The next prime is 1087072243. The reversal of 1087072241 is 1422707801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1422707801 = 211 ⋅6742691.

It can be written as a sum of positive squares in 2 ways, for example, as 365612641 + 721459600 = 19121^2 + 26860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1087072241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1087072198 and 1087072207.

It is not an unprimeable number, because it can be changed into a prime (1087072243) 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, 10255346 + ... + 10255451.

It is an arithmetic number, because the mean of its divisors is an integer number (276895773).

Almost surely, 2^1087072241 is an apocalyptic number.

It is an amenable number.

1087072241 is a deficient number, since it is larger than the sum of its proper divisors (20510851).

1087072241 is an equidigital number, since it uses as much as digits as its factorization.

1087072241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20510850.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 1087072241 is about 32970.7785925659. The cubic root of 1087072241 is about 1028.2202088097.

The spelling of 1087072241 in words is "one billion, eighty-seven million, seventy-two thousand, two hundred forty-one".