145503753 has 4 divisors (see below), whose sum is σ = 194005008. Its totient is φ = 97002500.

The previous prime is 145503749. The next prime is 145503791. The reversal of 145503753 is 357305541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145503753 - 2² = 145503749 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145503703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24250623 + ... + 24250628.

It is an arithmetic number, because the mean of its divisors is an integer number (48501252).

Almost surely, 2^145503753 is an apocalyptic number.

It is an amenable number.

145503753 is a deficient number, since it is larger than the sum of its proper divisors (48501255).

145503753 is an equidigital number, since it uses as much as digits as its factorization.

145503753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48501254.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 145503753 is about 12062.4936476667. The cubic root of 145503753 is about 525.9664773077.

The spelling of 145503753 in words is "one hundred forty-five million, five hundred three thousand, seven hundred fifty-three".