101055690 has 24 divisors (see below), whose sum is σ = 262745028. Its totient is φ = 26948160.

The previous prime is 101055679. The next prime is 101055697. The reversal of 101055690 is 96550101.

101055690 is a `hidden beast` number, since 10 + 10 + 556 + 90 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 89132481 + 11923209 = 9441^2 + 3453^2 .

It is a super-2 number, since 2×101055690² = 20424504962752200, which contains 22 as substring.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 561331 + ... + 561510.

Almost surely, 2^101055690 is an apocalyptic number.

101055690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101055690 is an abundant number, since it is smaller than the sum of its proper divisors (161689338).

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

101055690 is a wasteful number, since it uses less digits than its factorization.

101055690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122854 (or 1122851 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 101055690 is about 10052.6459203535. The cubic root of 101055690 is about 465.7865287365.

The spelling of 101055690 in words is "one hundred one million, fifty-five thousand, six hundred ninety".