145717454 has 16 divisors (see below), whose sum is σ = 224378880. Its totient is φ = 70935480.

The previous prime is 145717427. The next prime is 145717459. The reversal of 145717454 is 454717541.

145717454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145717459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25907 + ... + 31025.

It is an arithmetic number, because the mean of its divisors is an integer number (14023680).

Almost surely, 2^145717454 is an apocalyptic number.

145717454 is a deficient number, since it is larger than the sum of its proper divisors (78661426).

145717454 is a wasteful number, since it uses less digits than its factorization.

145717454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495.

The product of its digits is 78400, while the sum is 38.

The square root of 145717454 is about 12071.3484747977. The cubic root of 145717454 is about 526.2238465684.

The spelling of 145717454 in words is "one hundred forty-five million, seven hundred seventeen thousand, four hundred fifty-four".