145717456 has 40 divisors (see below), whose sum is σ = 287794080. Its totient is φ = 71462016.

The previous prime is 145717427. The next prime is 145717459. The reversal of 145717456 is 654717541.

145717456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145717456² = 42467153966223872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 237406 + ... + 238018.

It is an arithmetic number, because the mean of its divisors is an integer number (7194852).

Almost surely, 2^145717456 is an apocalyptic number.

145717456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145717456 is a deficient number, since it is larger than the sum of its proper divisors (142076624).

145717456 is a wasteful number, since it uses less digits than its factorization.

145717456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 877 counting only the distinct ones).

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

The square root of 145717456 is about 12071.3485576385. The cubic root of 145717456 is about 526.2238489759.

The spelling of 145717456 in words is "one hundred forty-five million, seven hundred seventeen thousand, four hundred fifty-six".