1101678172 has 18 divisors (see below), whose sum is σ = 2242702392. Its totient is φ = 472147704.

The previous prime is 1101678163. The next prime is 1101678191. The reversal of 1101678172 is 2718761011.

It is a super-3 number, since 3×1101678172³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2810208 + ... + 2810599.

Almost surely, 2^1101678172 is an apocalyptic number.

It is an amenable number.

1101678172 is an abundant number, since it is smaller than the sum of its proper divisors (1141024220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101678172 is a wasteful number, since it uses less digits than its factorization.

1101678172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620825 (or 5620816 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 34.

The square root of 1101678172 is about 33191.5376564570. The cubic root of 1101678172 is about 1032.8048013264.

The spelling of 1101678172 in words is "one billion, one hundred one million, six hundred seventy-eight thousand, one hundred seventy-two".