145990854 has 48 divisors (see below), whose sum is σ = 322408944. Its totient is φ = 47736000.

The previous prime is 145990847. The next prime is 145990879. The reversal of 145990854 is 458099541.

145990854 is a `hidden beast` number, since 1 + 4 + 599 + 0 + 8 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237852 + ... + 238464.

It is an arithmetic number, because the mean of its divisors is an integer number (6716853).

Almost surely, 2^145990854 is an apocalyptic number.

145990854 is an abundant number, since it is smaller than the sum of its proper divisors (176418090).

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

145990854 is a wasteful number, since it uses less digits than its factorization.

145990854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 145990854 is about 12082.6675034944. The cubic root of 145990854 is about 526.5527472634.

The spelling of 145990854 in words is "one hundred forty-five million, nine hundred ninety thousand, eight hundred fifty-four".