1105253521 has 8 divisors (see below), whose sum is σ = 1186752384. Its totient is φ = 1025586240.

The previous prime is 1105253519. The next prime is 1105253533. The reversal of 1105253521 is 1253525011.

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 1105253521 - 2¹ = 1105253519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105253581) 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, 456645 + ... + 459058.

It is an arithmetic number, because the mean of its divisors is an integer number (148344048).

Almost surely, 2^1105253521 is an apocalyptic number.

It is an amenable number.

1105253521 is a deficient number, since it is larger than the sum of its proper divisors (81498863).

1105253521 is an equidigital number, since it uses as much as digits as its factorization.

1105253521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915791.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1105253521 is about 33245.3533745695. The cubic root of 1105253521 is about 1033.9208714094.

Adding to 1105253521 its reverse (1253525011), we get a palindrome (2358778532).

The spelling of 1105253521 in words is "one billion, one hundred five million, two hundred fifty-three thousand, five hundred twenty-one".