20150641 has 8 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 17246688.

The previous prime is 20150633. The next prime is 20150677. The reversal of 20150641 is 14605102.

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 20150641 - 2³ = 20150633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120641) 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, 4320 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^20150641 is an apocalyptic number.

It is an amenable number.

20150641 is a deficient number, since it is larger than the sum of its proper divisors (2912399).

20150641 is an equidigital number, since it uses as much as digits as its factorization.

20150641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20150641 is about 4488.9465356585. The cubic root of 20150641 is about 272.1215620490.

Adding to 20150641 its reverse (14605102), we get a palindrome (34755743).

The spelling of 20150641 in words is "twenty million, one hundred fifty thousand, six hundred forty-one".