145789790 has 32 divisors (see below), whose sum is σ = 278510400. Its totient is φ = 54756864.

The previous prime is 145789771. The next prime is 145789811. The reversal of 145789790 is 97987541.

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 15 ways as a sum of consecutive naturals, for example, 103511 + ... + 104909.

It is an arithmetic number, because the mean of its divisors is an integer number (8703450).

Almost surely, 2^145789790 is an apocalyptic number.

145789790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145789790 is a deficient number, since it is larger than the sum of its proper divisors (132720610).

145789790 is a wasteful number, since it uses less digits than its factorization.

145789790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 145789790 is about 12074.3442886146. The cubic root of 145789790 is about 526.3109069038.

The spelling of 145789790 in words is "one hundred forty-five million, seven hundred eighty-nine thousand, seven hundred ninety".