145015744 has 28 divisors (see below), whose sum is σ = 288228024. Its totient is φ = 72391424.

The previous prime is 145015711. The next prime is 145015751. The reversal of 145015744 is 447510541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49587 + ... + 52429.

It is an arithmetic number, because the mean of its divisors is an integer number (10293858).

Almost surely, 2^145015744 is an apocalyptic number.

It is an amenable number.

145015744 is a deficient number, since it is larger than the sum of its proper divisors (143212280).

145015744 is an equidigital number, since it uses as much as digits as its factorization.

145015744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652 (or 3642 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 145015744 is about 12042.2482950652. The cubic root of 145015744 is about 525.3778009261.

The spelling of 145015744 in words is "one hundred forty-five million, fifteen thousand, seven hundred forty-four".