145904346 has 48 divisors (see below), whose sum is σ = 362232000. Its totient is φ = 41577984.

The previous prime is 145904303. The next prime is 145904347. The reversal of 145904346 is 643409541.

It is a self number, because there is not a number n which added to its sum of digits gives 145904346.

It is not an unprimeable number, because it can be changed into a prime (145904347) by changing a digit.

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, 55285 + ... + 57863.

It is an arithmetic number, because the mean of its divisors is an integer number (7546500).

Almost surely, 2^145904346 is an apocalyptic number.

145904346 is an abundant number, since it is smaller than the sum of its proper divisors (216327654).

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

145904346 is a wasteful number, since it uses less digits than its factorization.

145904346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 145904346 is about 12079.0871343823. The cubic root of 145904346 is about 526.4487224244.

The spelling of 145904346 in words is "one hundred forty-five million, nine hundred four thousand, three hundred forty-six".