1234545533 has 4 divisors (see below), whose sum is σ = 1329510588. Its totient is φ = 1139580480.

The previous prime is 1234545517. The next prime is 1234545583. The reversal of 1234545533 is 3355454321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 854217529 + 380328004 = 29227^2 + 19502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234545533 - 2⁴ = 1234545517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1234545493 and 1234545502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234545583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47482508 + ... + 47482533.

It is an arithmetic number, because the mean of its divisors is an integer number (332377647).

Almost surely, 2^1234545533 is an apocalyptic number.

1234545533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1234545533 is a deficient number, since it is larger than the sum of its proper divisors (94965055).

1234545533 is an equidigital number, since it uses as much as digits as its factorization.

1234545533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94965054.

The product of its digits is 108000, while the sum is 35.

The square root of 1234545533 is about 35136.1001393154. The cubic root of 1234545533 is about 1072.7595039681.

Adding to 1234545533 its reverse (3355454321), we get a palindrome (4589999854).

The spelling of 1234545533 in words is "one billion, two hundred thirty-four million, five hundred forty-five thousand, five hundred thirty-three".