145719574 has 72 divisors (see below), whose sum is σ = 297909360. Its totient is φ = 52303680.

The previous prime is 145719571. The next prime is 145719583. The reversal of 145719574 is 475917541.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 145719574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145719571) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 286032 + ... + 286540.

It is an arithmetic number, because the mean of its divisors is an integer number (4137630).

Almost surely, 2^145719574 is an apocalyptic number.

145719574 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145719574 is an abundant number, since it is smaller than the sum of its proper divisors (152189786).

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

145719574 is a wasteful number, since it uses less digits than its factorization.

145719574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 542 counting only the distinct ones).

The product of its digits is 176400, while the sum is 43.

The square root of 145719574 is about 12071.4362857118. The cubic root of 145719574 is about 526.2263985142.

The spelling of 145719574 in words is "one hundred forty-five million, seven hundred nineteen thousand, five hundred seventy-four".