1634140533 has 8 divisors (see below), whose sum is σ = 2184792448. Its totient is φ = 1086457824.

The previous prime is 1634140493. The next prime is 1634140537. The reversal of 1634140533 is 3350414361.

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

It is not a de Polignac number, because 1634140533 - 2⁹ = 1634140021 is a prime.

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 1634140533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634140537) 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, 741016 + ... + 743217.

It is an arithmetic number, because the mean of its divisors is an integer number (273099056).

Almost surely, 2^1634140533 is an apocalyptic number.

It is an amenable number.

1634140533 is a deficient number, since it is larger than the sum of its proper divisors (550651915).

1634140533 is a wasteful number, since it uses less digits than its factorization.

1634140533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484603.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1634140533 is about 40424.5041156970. The cubic root of 1634140533 is about 1177.8675776885.

Adding to 1634140533 its reverse (3350414361), we get a palindrome (4984554894).

The spelling of 1634140533 in words is "one billion, six hundred thirty-four million, one hundred forty thousand, five hundred thirty-three".