145745716 has 6 divisors (see below), whose sum is σ = 255055010. Its totient is φ = 72872856.

The previous prime is 145745711. The next prime is 145745729. The reversal of 145745716 is 617547541.

It can be written as a sum of positive squares in only one way, i.e., 133171600 + 12574116 = 11540^2 + 3546^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145745711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18218211 + ... + 18218218.

Almost surely, 2^145745716 is an apocalyptic number.

It is an amenable number.

145745716 is a deficient number, since it is larger than the sum of its proper divisors (109309294).

145745716 is a wasteful number, since it uses less digits than its factorization.

145745716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36436433 (or 36436431 counting only the distinct ones).

The product of its digits is 117600, while the sum is 40.

The square root of 145745716 is about 12072.5190411943. The cubic root of 145745716 is about 526.2578648610.

The spelling of 145745716 in words is "one hundred forty-five million, seven hundred forty-five thousand, seven hundred sixteen".