1652381231 has 8 divisors (see below), whose sum is σ = 1661922240. Its totient is φ = 1642862592.

The previous prime is 1652381219. The next prime is 1652381239. The reversal of 1652381231 is 1321832561.

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 1652381231 - 2¹⁰ = 1652380207 is a prime.

It is a super-4 number, since 4×1652381231⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1652381239) 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, 155711 + ... + 165983.

It is an arithmetic number, because the mean of its divisors is an integer number (207740280).

Almost surely, 2^1652381231 is an apocalyptic number.

1652381231 is a deficient number, since it is larger than the sum of its proper divisors (9541009).

1652381231 is a wasteful number, since it uses less digits than its factorization.

1652381231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11185.

The product of its digits is 8640, while the sum is 32.

The square root of 1652381231 is about 40649.4923830544. The cubic root of 1652381231 is about 1182.2339255370.

The spelling of 1652381231 in words is "one billion, six hundred fifty-two million, three hundred eighty-one thousand, two hundred thirty-one".