145456744 has 8 divisors (see below), whose sum is σ = 272731410. Its totient is φ = 72728368.

The previous prime is 145456741. The next prime is 145456747. The reversal of 145456744 is 447654541.

It is an interprime number because it is at equal distance from previous prime (145456741) and next prime (145456747).

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 64995844 = 8970^2 + 8062^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 145456697 and 145456706.

It is not an unprimeable number, because it can be changed into a prime (145456741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9091039 + ... + 9091054.

Almost surely, 2^145456744 is an apocalyptic number.

It is an amenable number.

145456744 is a deficient number, since it is larger than the sum of its proper divisors (127274666).

145456744 is a wasteful number, since it uses less digits than its factorization.

145456744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18182099 (or 18182095 counting only the distinct ones).

The product of its digits is 268800, while the sum is 40.

The square root of 145456744 is about 12060.5449296456. The cubic root of 145456744 is about 525.9098285482.

The spelling of 145456744 in words is "one hundred forty-five million, four hundred fifty-six thousand, seven hundred forty-four".