1101642481 has 3 divisors (see below), whose sum is σ = 1101675673. Its totient is φ = 1101609290.

The previous prime is 1101642427. The next prime is 1101642491. The reversal of 1101642481 is 1842461011.

The square root of 1101642481 is 33191.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1842461011 = 223 ⋅8262157.

It is not a de Polignac number, because 1101642481 - 2¹⁵ = 1101609713 is a prime.

It is a super-3 number, since 3×1101642481³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101642491) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16596 + ... + 49786.

Almost surely, 2^1101642481 is an apocalyptic number.

1101642481 is the 33191-st square number.

1101642481 is the 16596-th centered octagonal number.

It is an amenable number.

1101642481 is a deficient number, since it is larger than the sum of its proper divisors (33192).

1101642481 is an frugal number, since it uses more digits than its factorization.

1101642481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66382 (or 33191 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The cubic root of 1101642481 is about 1032.7936479681.

The spelling of 1101642481 in words is "one billion, one hundred one million, six hundred forty-two thousand, four hundred eighty-one".