154420145145 has 40 divisors (see below), whose sum is σ = 316357043904. Its totient is φ = 70592065056.

The previous prime is 154420145107. The next prime is 154420145153. The reversal of 154420145145 is 541541024451.

154420145145 is a `hidden beast` number, since 1 + 54 + 420 + 1 + 45 + 145 = 666.

It is not a de Polignac number, because 154420145145 - 2¹³ = 154420136953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27231759 + ... + 27237428.

Almost surely, 2^154420145145 is an apocalyptic number.

154420145145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154420145145 is an abundant number, since it is smaller than the sum of its proper divisors (161936898759).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154420145145 is an equidigital number, since it uses as much as digits as its factorization.

154420145145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54469211 (or 54469202 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 154420145145 its reverse (541541024451), we get a palindrome (695961169596).

The spelling of 154420145145 in words is "one hundred fifty-four billion, four hundred twenty million, one hundred forty-five thousand, one hundred forty-five".