20695101 has 24 divisors (see below), whose sum is σ = 33499584. Its totient is φ = 11309760.

The previous prime is 20695093. The next prime is 20695109. The reversal of 20695101 is 10159602.

It is an interprime number because it is at equal distance from previous prime (20695093) and next prime (20695109).

It is not a de Polignac number, because 20695101 - 2³ = 20695093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20695109) 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, 321 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (1395816).

Almost surely, 2^20695101 is an apocalyptic number.

20695101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20695101 is a deficient number, since it is larger than the sum of its proper divisors (12804483).

20695101 is a wasteful number, since it uses less digits than its factorization.

20695101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161 (or 6154 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 20695101 is about 4549.1868504162. The cubic root of 20695101 is about 274.5506756120.

The spelling of 20695101 in words is "twenty million, six hundred ninety-five thousand, one hundred one".