145747369 has 4 divisors (see below), whose sum is σ = 147162496. Its totient is φ = 144332244.

The previous prime is 145747331. The next prime is 145747387. The reversal of 145747369 is 963747541.

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 145747369 - 2⁹ = 145746857 is a prime.

It is a super-2 number, since 2×145747369² = 42484591140844322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145747669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707409 + ... + 707614.

It is an arithmetic number, because the mean of its divisors is an integer number (36790624).

Almost surely, 2^145747369 is an apocalyptic number.

It is an amenable number.

145747369 is a deficient number, since it is larger than the sum of its proper divisors (1415127).

145747369 is a wasteful number, since it uses less digits than its factorization.

145747369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415126.

The product of its digits is 635040, while the sum is 46.

The square root of 145747369 is about 12072.5875022714. The cubic root of 145747369 is about 526.2598544014.

The spelling of 145747369 in words is "one hundred forty-five million, seven hundred forty-seven thousand, three hundred sixty-nine".