145103856 has 40 divisors (see below), whose sum is σ = 376654464. Its totient is φ = 48135360.

The previous prime is 145103821. The next prime is 145103911. The reversal of 145103856 is 658301541.

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 7 ways as a sum of consecutive naturals, for example, 2965 + ... + 17291.

Almost surely, 2^145103856 is an apocalyptic number.

145103856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

145103856 is the 7619-th centered pentagonal number.

It is an amenable number.

145103856 is an abundant number, since it is smaller than the sum of its proper divisors (231550608).

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

145103856 is a wasteful number, since it uses less digits than its factorization.

145103856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14549 (or 14543 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 145103856 is about 12045.9061925619. The cubic root of 145103856 is about 525.4841864236.

The spelling of 145103856 in words is "one hundred forty-five million, one hundred three thousand, eight hundred fifty-six".