145774253 has 4 divisors (see below), whose sum is σ = 152112288. Its totient is φ = 139436220.

The previous prime is 145774247. The next prime is 145774259. The reversal of 145774253 is 352477541.

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 an interprime number because it is at equal distance from previous prime (145774247) and next prime (145774259).

It is a cyclic number.

It is not a de Polignac number, because 145774253 - 2²⁰ = 144725677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145774259) 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 3 ways as a sum of consecutive naturals, for example, 3168983 + ... + 3169028.

It is an arithmetic number, because the mean of its divisors is an integer number (38028072).

Almost surely, 2^145774253 is an apocalyptic number.

It is an amenable number.

145774253 is a deficient number, since it is larger than the sum of its proper divisors (6338035).

145774253 is an equidigital number, since it uses as much as digits as its factorization.

145774253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338034.

The product of its digits is 117600, while the sum is 38.

The square root of 145774253 is about 12073.7008824966. The cubic root of 145774253 is about 526.2922097027.

The spelling of 145774253 in words is "one hundred forty-five million, seven hundred seventy-four thousand, two hundred fifty-three".