1101521245 has 8 divisors (see below), whose sum is σ = 1441991520. Its totient is φ = 801106320.

The previous prime is 1101521231. The next prime is 1101521261. The reversal of 1101521245 is 5421251011.

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

It is not a de Polignac number, because 1101521245 - 2⁹ = 1101520733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10013775 + ... + 10013884.

It is an arithmetic number, because the mean of its divisors is an integer number (180248940).

Almost surely, 2^1101521245 is an apocalyptic number.

It is an amenable number.

1101521245 is a deficient number, since it is larger than the sum of its proper divisors (340470275).

1101521245 is a wasteful number, since it uses less digits than its factorization.

1101521245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20027675.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1101521245 is about 33189.1736112847. The cubic root of 1101521245 is about 1032.7557601880.

Adding to 1101521245 its reverse (5421251011), we get a palindrome (6522772256).

The spelling of 1101521245 in words is "one billion, one hundred one million, five hundred twenty-one thousand, two hundred forty-five".