20115701 has 8 divisors (see below), whose sum is σ = 20643744. Its totient is φ = 19590480.

The previous prime is 20115659. The next prime is 20115713. The reversal of 20115701 is 10751102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20115701 - 2¹⁸ = 19853557 is a prime.

It is a super-3 number, since 3×20115701³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20115701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20115721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28766 + ... + 29456.

It is an arithmetic number, because the mean of its divisors is an integer number (2580468).

Almost surely, 2^20115701 is an apocalyptic number.

It is an amenable number.

20115701 is a deficient number, since it is larger than the sum of its proper divisors (528043).

20115701 is an equidigital number, since it uses as much as digits as its factorization.

20115701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 20115701 is about 4485.0530654609. The cubic root of 20115701 is about 271.9641902468.

Adding to 20115701 its reverse (10751102), we get a palindrome (30866803).

The spelling of 20115701 in words is "twenty million, one hundred fifteen thousand, seven hundred one".