145641744 has 60 divisors (see below), whose sum is σ = 408525936. Its totient is φ = 48436416.

The previous prime is 145641701. The next prime is 145641761. The reversal of 145641744 is 447146541.

It is a happy number.

145641744 is a `hidden beast` number, since 1 + 4 + 5 + 641 + 7 + 4 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 145641699 and 145641708.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83667 + ... + 85389.

Almost surely, 2^145641744 is an apocalyptic number.

It is an amenable number.

145641744 is an abundant number, since it is smaller than the sum of its proper divisors (262884192).

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

145641744 is a wasteful number, since it uses less digits than its factorization.

145641744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324 (or 2315 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 145641744 is about 12068.2121293918. The cubic root of 145641744 is about 526.1326945747.

The spelling of 145641744 in words is "one hundred forty-five million, six hundred forty-one thousand, seven hundred forty-four".