154361012721 has 4 divisors (see below), whose sum is σ = 205814683632. Its totient is φ = 102907341812.

The previous prime is 154361012711. The next prime is 154361012797. The reversal of 154361012721 is 127210163451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154361012721 - 2¹¹ = 154361010673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154361012711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25726835451 + ... + 25726835456.

It is an arithmetic number, because the mean of its divisors is an integer number (51453670908).

Almost surely, 2^154361012721 is an apocalyptic number.

It is an amenable number.

154361012721 is a deficient number, since it is larger than the sum of its proper divisors (51453670911).

154361012721 is an equidigital number, since it uses as much as digits as its factorization.

154361012721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51453670910.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 154361012721 in words is "one hundred fifty-four billion, three hundred sixty-one million, twelve thousand, seven hundred twenty-one".