154652650121 has 4 divisors (see below), whose sum is σ = 163749864852. Its totient is φ = 145555435392.

The previous prime is 154652650109. The next prime is 154652650129. The reversal of 154652650121 is 121056256451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68927251600 + 85725398521 = 262540^2 + 292789^2 .

It is a cyclic number.

It is not a de Polignac number, because 154652650121 - 2¹⁰ = 154652649097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154652650129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4548607340 + ... + 4548607373.

It is an arithmetic number, because the mean of its divisors is an integer number (40937466213).

Almost surely, 2^154652650121 is an apocalyptic number.

It is an amenable number.

154652650121 is a deficient number, since it is larger than the sum of its proper divisors (9097214731).

154652650121 is an equidigital number, since it uses as much as digits as its factorization.

154652650121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097214730.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 154652650121 in words is "one hundred fifty-four billion, six hundred fifty-two million, six hundred fifty thousand, one hundred twenty-one".