20154451141 has 8 divisors (see below), whose sum is σ = 22051920384. Its totient is φ = 18267856320.

The previous prime is 20154451061. The next prime is 20154451147. The reversal of 20154451141 is 14115445102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20154451141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154451147) 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, 2714725 + ... + 2722138.

It is an arithmetic number, because the mean of its divisors is an integer number (2756490048).

Almost surely, 2^20154451141 is an apocalyptic number.

It is an amenable number.

20154451141 is a deficient number, since it is larger than the sum of its proper divisors (1897469243).

20154451141 is a wasteful number, since it uses less digits than its factorization.

20154451141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437211.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 20154451141 its reverse (14115445102), we get a palindrome (34269896243).

The spelling of 20154451141 in words is "twenty billion, one hundred fifty-four million, four hundred fifty-one thousand, one hundred forty-one".