145145444782 has 32 divisors (see below), whose sum is σ = 243114762240. Its totient is φ = 64538436960.

The previous prime is 145145444767. The next prime is 145145444809. The reversal of 145145444782 is 287444541541.

It is a super-2 number, since 2×145145444782² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224032 + ... + 583507.

It is an arithmetic number, because the mean of its divisors is an integer number (7597336320).

Almost surely, 2^145145444782 is an apocalyptic number.

145145444782 is a deficient number, since it is larger than the sum of its proper divisors (97969317458).

145145444782 is a wasteful number, since it uses less digits than its factorization.

145145444782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807808.

The product of its digits is 2867200, while the sum is 49.

The spelling of 145145444782 in words is "one hundred forty-five billion, one hundred forty-five million, four hundred forty-four thousand, seven hundred eighty-two".