145123349855 has 32 divisors (see below), whose sum is σ = 200189802240. Its totient is φ = 99883687680.

The previous prime is 145123349831. The next prime is 145123349867. The reversal of 145123349855 is 558943321541.

It is not a de Polignac number, because 145123349855 - 2¹⁰ = 145123348831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 923024 + ... + 1068746.

It is an arithmetic number, because the mean of its divisors is an integer number (6255931320).

Almost surely, 2^145123349855 is an apocalyptic number.

145123349855 is a deficient number, since it is larger than the sum of its proper divisors (55066452385).

145123349855 is a wasteful number, since it uses less digits than its factorization.

145123349855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146711.

The product of its digits is 2592000, while the sum is 50.

The spelling of 145123349855 in words is "one hundred forty-five billion, one hundred twenty-three million, three hundred forty-nine thousand, eight hundred fifty-five".