101055691 has 24 divisors (see below), whose sum is σ = 118742400. Its totient is φ = 85747200.

The previous prime is 101055679. The next prime is 101055697. The reversal of 101055691 is 196550101.

It is not a de Polignac number, because 101055691 - 2⁵ = 101055659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101055697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108315 + ... + 109243.

It is an arithmetic number, because the mean of its divisors is an integer number (4947600).

Almost surely, 2^101055691 is an apocalyptic number.

101055691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101055691 is a deficient number, since it is larger than the sum of its proper divisors (17686709).

101055691 is a wasteful number, since it uses less digits than its factorization.

101055691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 101055691 is about 10052.6459700917. The cubic root of 101055691 is about 465.7865302729.

The spelling of 101055691 in words is "one hundred one million, fifty-five thousand, six hundred ninety-one".