154142220512239 has 4 divisors (see below), whose sum is σ = 154142263824480. Its totient is φ = 154142177200000.

The previous prime is 154142220512213. The next prime is 154142220512263. The reversal of 154142220512239 is 932215022241451.

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

It is a cyclic number.

It is not a de Polignac number, because 154142220512239 - 2¹⁷ = 154142220381167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154142220512195 and 154142220512204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154142220522239) 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, 15787762 + ... + 23612239.

It is an arithmetic number, because the mean of its divisors is an integer number (38535565956120).

Almost surely, 2^{154142220512239} is an apocalyptic number.

154142220512239 is a deficient number, since it is larger than the sum of its proper divisors (43312241).

154142220512239 is an equidigital number, since it uses as much as digits as its factorization.

154142220512239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43312240.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 154142220512239 in words is "one hundred fifty-four trillion, one hundred forty-two billion, two hundred twenty million, five hundred twelve thousand, two hundred thirty-nine".