145181582 has 16 divisors (see below), whose sum is σ = 268027872. Its totient is φ = 57434400.

The previous prime is 145181573. The next prime is 145181593. The reversal of 145181582 is 285181541.

145181582 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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, 398669 + ... + 399032.

It is an arithmetic number, because the mean of its divisors is an integer number (16751742).

Almost surely, 2^145181582 is an apocalyptic number.

145181582 is a deficient number, since it is larger than the sum of its proper divisors (122846290).

145181582 is a wasteful number, since it uses less digits than its factorization.

145181582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797723.

The product of its digits is 12800, while the sum is 35.

The square root of 145181582 is about 12049.1320019328. The cubic root of 145181582 is about 525.5779962285.

The spelling of 145181582 in words is "one hundred forty-five million, one hundred eighty-one thousand, five hundred eighty-two".