145820502 has 24 divisors (see below), whose sum is σ = 316221984. Its totient is φ = 48564144.

The previous prime is 145820453. The next prime is 145820531. The reversal of 145820502 is 205028541.

It is a happy number.

145820502 is a `hidden beast` number, since 1 + 458 + 205 + 0 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22768 + ... + 28460.

It is an arithmetic number, because the mean of its divisors is an integer number (13175916).

Almost surely, 2^145820502 is an apocalyptic number.

145820502 is an abundant number, since it is smaller than the sum of its proper divisors (170401482).

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

145820502 is a wasteful number, since it uses less digits than its factorization.

145820502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124 (or 7121 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 145820502 is about 12075.6160091318. The cubic root of 145820502 is about 526.3478617680.

The spelling of 145820502 in words is "one hundred forty-five million, eight hundred twenty thousand, five hundred two".