145957785 has 32 divisors (see below), whose sum is σ = 240804480. Its totient is φ = 75437568.

The previous prime is 145957771. The next prime is 145957787. The reversal of 145957785 is 587759541.

It is not a de Polignac number, because 145957785 - 2⁴ = 145957769 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145957787) 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 31 ways as a sum of consecutive naturals, for example, 226674 + ... + 227316.

It is an arithmetic number, because the mean of its divisors is an integer number (7525140).

Almost surely, 2^145957785 is an apocalyptic number.

145957785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145957785 is a deficient number, since it is larger than the sum of its proper divisors (94846695).

145957785 is a wasteful number, since it uses less digits than its factorization.

145957785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097.

The product of its digits is 1764000, while the sum is 51.

The square root of 145957785 is about 12081.2989781728. The cubic root of 145957785 is about 526.5129870382.

The spelling of 145957785 in words is "one hundred forty-five million, nine hundred fifty-seven thousand, seven hundred eighty-five".