145717460 has 96 divisors (see below), whose sum is σ = 381024000. Its totient is φ = 45674496.

The previous prime is 145717459. The next prime is 145717477. The reversal of 145717460 is 64717541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 145717460.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76196 + ... + 78084.

It is an arithmetic number, because the mean of its divisors is an integer number (3969000).

Almost surely, 2^145717460 is an apocalyptic number.

145717460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145717460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190512000).

145717460 is an abundant number, since it is smaller than the sum of its proper divisors (235306540).

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

145717460 is a wasteful number, since it uses less digits than its factorization.

145717460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1951 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 145717460 is about 12071.3487233200. The cubic root of 145717460 is about 526.2238537909.

The spelling of 145717460 in words is "one hundred forty-five million, seven hundred seventeen thousand, four hundred sixty".