1092732121 has 8 divisors (see below), whose sum is σ = 1190012040. Its totient is φ = 997341312.

The previous prime is 1092732077. The next prime is 1092732133. The reversal of 1092732121 is 1212372901.

It can be written as a sum of positive squares in 4 ways, for example, as 48149721 + 1044582400 = 6939^2 + 32320^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1092732121 - 2⁷ = 1092731993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1092732121.

It is not an unprimeable number, because it can be changed into a prime (1092732181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471070 + ... + 473383.

It is an arithmetic number, because the mean of its divisors is an integer number (148751505).

Almost surely, 2^1092732121 is an apocalyptic number.

It is an amenable number.

1092732121 is a deficient number, since it is larger than the sum of its proper divisors (97279919).

1092732121 is an equidigital number, since it uses as much as digits as its factorization.

1092732121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944555.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1092732121 is about 33056.4989222997. The cubic root of 1092732121 is about 1030.0016090087.

The spelling of 1092732121 in words is "one billion, ninety-two million, seven hundred thirty-two thousand, one hundred twenty-one".