145717452 has 36 divisors (see below), whose sum is σ = 369465096. Its totient is φ = 48424320.

The previous prime is 145717427. The next prime is 145717459. The reversal of 145717452 is 254717541.

145717452 is a `hidden beast` number, since 14 + 571 + 74 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 6127 + ... + 18137.

Almost surely, 2^145717452 is an apocalyptic number.

145717452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145717452 is an abundant number, since it is smaller than the sum of its proper divisors (223747644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145717452 is a wasteful number, since it uses less digits than its factorization.

145717452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358 (or 12353 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 145717452 is about 12071.3483919569. The cubic root of 145717452 is about 526.2238441609.

The spelling of 145717452 in words is "one hundred forty-five million, seven hundred seventeen thousand, four hundred fifty-two".