1065162421 has 8 divisors (see below), whose sum is σ = 1135935360. Its totient is φ = 995291328.

The previous prime is 1065162403. The next prime is 1065162443. The reversal of 1065162421 is 1242615601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1065162421 - 2¹¹ = 1065160373 is a prime.

It is a super-4 number, since 4×1065162421⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1065162421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065168421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223021 + ... + 227746.

It is an arithmetic number, because the mean of its divisors is an integer number (141991920).

Almost surely, 2^1065162421 is an apocalyptic number.

It is an amenable number.

1065162421 is a deficient number, since it is larger than the sum of its proper divisors (70772939).

1065162421 is a wasteful number, since it uses less digits than its factorization.

1065162421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450923.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1065162421 is about 32636.8261477736. The cubic root of 1065162421 is about 1021.2653848857.

The spelling of 1065162421 in words is "one billion, sixty-five million, one hundred sixty-two thousand, four hundred twenty-one".