145344724 has 24 divisors (see below), whose sum is σ = 290945088. Its totient is φ = 62235840.

The previous prime is 145344673. The next prime is 145344733. The reversal of 145344724 is 427443541.

It is a super-2 number, since 2×145344724² = 42250177589272352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145344724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59079 + ... + 61489.

It is an arithmetic number, because the mean of its divisors is an integer number (12122712).

Almost surely, 2^145344724 is an apocalyptic number.

145344724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145344724 is an abundant number, since it is smaller than the sum of its proper divisors (145600364).

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

145344724 is a wasteful number, since it uses less digits than its factorization.

145344724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575 (or 4573 counting only the distinct ones).

The product of its digits is 53760, while the sum is 34.

The square root of 145344724 is about 12055.8999664065. The cubic root of 145344724 is about 525.7747882900.

The spelling of 145344724 in words is "one hundred forty-five million, three hundred forty-four thousand, seven hundred twenty-four".