145809876 has 24 divisors (see below), whose sum is σ = 358130080. Its totient is φ = 46045152.

The previous prime is 145809847. The next prime is 145809877. The reversal of 145809876 is 678908541.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145809877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319531 + ... + 319986.

Almost surely, 2^145809876 is an apocalyptic number.

It is an amenable number.

145809876 is an abundant number, since it is smaller than the sum of its proper divisors (212320204).

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

145809876 is a wasteful number, since it uses less digits than its factorization.

145809876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639543 (or 639541 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 145809876 is about 12075.1760235617. The cubic root of 145809876 is about 526.3350763957.

The spelling of 145809876 in words is "one hundred forty-five million, eight hundred nine thousand, eight hundred seventy-six".