145716049 has 4 divisors (see below), whose sum is σ = 146064240. Its totient is φ = 145367860.

The previous prime is 145716037. The next prime is 145716083. The reversal of 145716049 is 940617541.

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 not a de Polignac number, because 145716049 - 2¹¹ = 145714001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145715999 and 145716017.

It is not an unprimeable number, because it can be changed into a prime (145716349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173467 + ... + 174304.

It is an arithmetic number, because the mean of its divisors is an integer number (36516060).

Almost surely, 2^145716049 is an apocalyptic number.

It is an amenable number.

145716049 is a deficient number, since it is larger than the sum of its proper divisors (348191).

145716049 is an equidigital number, since it uses as much as digits as its factorization.

145716049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348190.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 145716049 is about 12071.2902790050. The cubic root of 145716049 is about 526.2221552888. Note that the first 3 decimals are identical.

The spelling of 145716049 in words is "one hundred forty-five million, seven hundred sixteen thousand, forty-nine".