20154313461 has 8 divisors (see below), whose sum is σ = 27527842944. Its totient is φ = 13108496480.

The previous prime is 20154313427. The next prime is 20154313471. The reversal of 20154313461 is 16431345102.

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 20154313461 - 2⁹ = 20154312949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154313471) 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, 81927981 + ... + 81928226.

It is an arithmetic number, because the mean of its divisors is an integer number (3440980368).

Almost surely, 2^20154313461 is an apocalyptic number.

It is an amenable number.

20154313461 is a deficient number, since it is larger than the sum of its proper divisors (7373529483).

20154313461 is a wasteful number, since it uses less digits than its factorization.

20154313461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163856251.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 20154313461 its reverse (16431345102), we get a palindrome (36585658563).

The spelling of 20154313461 in words is "twenty billion, one hundred fifty-four million, three hundred thirteen thousand, four hundred sixty-one".