154145637953 has 4 divisors (see below), whose sum is σ = 156096848640. Its totient is φ = 152194427268.

The previous prime is 154145637949. The next prime is 154145637991. The reversal of 154145637953 is 359736541451.

It is a happy number.

154145637953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 359736541451 = 7 ⋅51390934493.

It is a cyclic number.

It is not a de Polignac number, because 154145637953 - 2² = 154145637949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154145637895 and 154145637904.

It is not an unprimeable number, because it can be changed into a prime (154145637253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975605225 + ... + 975605382.

It is an arithmetic number, because the mean of its divisors is an integer number (39024212160).

Almost surely, 2^154145637953 is an apocalyptic number.

It is an amenable number.

154145637953 is a deficient number, since it is larger than the sum of its proper divisors (1951210687).

154145637953 is an equidigital number, since it uses as much as digits as its factorization.

154145637953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951210686.

The product of its digits is 6804000, while the sum is 53.

The spelling of 154145637953 in words is "one hundred fifty-four billion, one hundred forty-five million, six hundred thirty-seven thousand, nine hundred fifty-three".