145857753 has 10 divisors (see below), whose sum is σ = 217886394. Its totient is φ = 97238448.

The previous prime is 145857731. The next prime is 145857757. The reversal of 145857753 is 357758541.

It is a happy number.

145857753 is a `hidden beast` number, since 14 + 585 + 7 + 7 + 53 = 666.

145857753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 99440784 + 46416969 = 9972^2 + 6813^2 .

It is not a de Polignac number, because 145857753 - 2⁵ = 145857721 is a prime.

It is a super-2 number, since 2×145857753² = 42548968220418018, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145857699 and 145857708.

It is not an unprimeable number, because it can be changed into a prime (145857757) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 900276 + ... + 900437.

Almost surely, 2^145857753 is an apocalyptic number.

It is an amenable number.

145857753 is a deficient number, since it is larger than the sum of its proper divisors (72028641).

145857753 is an equidigital number, since it uses as much as digits as its factorization.

145857753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800725 (or 1800716 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 145857753 is about 12077.1583164253. The cubic root of 145857753 is about 526.3926778594.

The spelling of 145857753 in words is "one hundred forty-five million, eight hundred fifty-seven thousand, seven hundred fifty-three".