7541213133 has 4 divisors (see below), whose sum is σ = 10054950848. Its totient is φ = 5027475420.

The previous prime is 7541213129. The next prime is 7541213143. The reversal of 7541213133 is 3313121457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7541213133 - 2² = 7541213129 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 7541213133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7541213143) 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, 1256868853 + ... + 1256868858.

It is an arithmetic number, because the mean of its divisors is an integer number (2513737712).

Almost surely, 2^7541213133 is an apocalyptic number.

It is an amenable number.

7541213133 is a deficient number, since it is larger than the sum of its proper divisors (2513737715).

7541213133 is a wasteful number, since it uses less digits than its factorization.

7541213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513737714.

The product of its digits is 7560, while the sum is 30.

The square root of 7541213133 is about 86840.1585270317. The cubic root of 7541213133 is about 1961.0126945133.

The spelling of 7541213133 in words is "seven billion, five hundred forty-one million, two hundred thirteen thousand, one hundred thirty-three".