145776920 has 16 divisors (see below), whose sum is σ = 327998160. Its totient is φ = 58310752.

The previous prime is 145776919. The next prime is 145776937. The reversal of 145776920 is 29677541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1822172 + ... + 1822251.

It is an arithmetic number, because the mean of its divisors is an integer number (20499885).

Almost surely, 2^145776920 is an apocalyptic number.

145776920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145776920 is an abundant number, since it is smaller than the sum of its proper divisors (182221240).

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

145776920 is a wasteful number, since it uses less digits than its factorization.

145776920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644434 (or 3644430 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 145776920 is about 12073.8113286567. The cubic root of 145776920 is about 526.2954192607.

The spelling of 145776920 in words is "one hundred forty-five million, seven hundred seventy-six thousand, nine hundred twenty".