145674437 has 4 divisors (see below), whose sum is σ = 145805280. Its totient is φ = 145543596.

The previous prime is 145674427. The next prime is 145674509. The reversal of 145674437 is 734476541.

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, and also an emirpimes, since its reverse is a distinct semiprime: 734476541 = 839 ⋅875419.

It is a cyclic number.

It is not a de Polignac number, because 145674437 - 2⁸ = 145674181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145674394 and 145674403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145674427) 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, 63737 + ... + 65982.

It is an arithmetic number, because the mean of its divisors is an integer number (36451320).

Almost surely, 2^145674437 is an apocalyptic number.

It is an amenable number.

145674437 is a deficient number, since it is larger than the sum of its proper divisors (130843).

145674437 is a wasteful number, since it uses less digits than its factorization.

145674437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130842.

The product of its digits is 282240, while the sum is 41.

The square root of 145674437 is about 12069.5665622258. The cubic root of 145674437 is about 526.1720595920.

The spelling of 145674437 in words is "one hundred forty-five million, six hundred seventy-four thousand, four hundred thirty-seven".