145056785 has 4 divisors (see below), whose sum is σ = 174068148. Its totient is φ = 116045424.

The previous prime is 145056749. The next prime is 145056799. The reversal of 145056785 is 587650541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85951441 + 59105344 = 9271^2 + 7688^2 .

It is a cyclic number.

It is not a de Polignac number, because 145056785 - 2⁶ = 145056721 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian 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, 14505674 + ... + 14505683.

It is an arithmetic number, because the mean of its divisors is an integer number (43517037).

Almost surely, 2^145056785 is an apocalyptic number.

It is an amenable number.

145056785 is a deficient number, since it is larger than the sum of its proper divisors (29011363).

145056785 is an equidigital number, since it uses as much as digits as its factorization.

145056785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29011362.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 145056785 is about 12043.9522167767. The cubic root of 145056785 is about 525.4273587556.

The spelling of 145056785 in words is "one hundred forty-five million, fifty-six thousand, seven hundred eighty-five".