1081528007 has 4 divisors (see below), whose sum is σ = 1236032016. Its totient is φ = 927024000.

The previous prime is 1081527989. The next prime is 1081528027. The reversal of 1081528007 is 7008251801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1081528007 - 2¹⁴ = 1081511623 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 (1081528027) 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, 77251994 + ... + 77252007.

It is an arithmetic number, because the mean of its divisors is an integer number (309008004).

Almost surely, 2^1081528007 is an apocalyptic number.

1081528007 is a deficient number, since it is larger than the sum of its proper divisors (154504009).

1081528007 is an equidigital number, since it uses as much as digits as its factorization.

1081528007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154504008.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 1081528007 is about 32886.5931193853. The cubic root of 1081528007 is about 1026.4692020695.

Adding to 1081528007 its reverse (7008251801), we get a palindrome (8089779808).

The spelling of 1081528007 in words is "one billion, eighty-one million, five hundred twenty-eight thousand, seven".