1065645542 has 32 divisors (see below), whose sum is σ = 1784008800. Its totient is φ = 474018048.

The previous prime is 1065645541. The next prime is 1065645557. The reversal of 1065645542 is 2455465601.

It is a super-2 number, since 2×1065645542² = 2271200842368947528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1065645496 and 1065645505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065645541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 609113 + ... + 610859.

It is an arithmetic number, because the mean of its divisors is an integer number (55750275).

Almost surely, 2^1065645542 is an apocalyptic number.

1065645542 is a deficient number, since it is larger than the sum of its proper divisors (718363258).

1065645542 is a wasteful number, since it uses less digits than its factorization.

1065645542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 1065645542 is about 32644.2267790187. The cubic root of 1065645542 is about 1021.4197651528.

The spelling of 1065645542 in words is "one billion, sixty-five million, six hundred forty-five thousand, five hundred forty-two".