2942721533 has 2 divisors, whose sum is σ = 2942721534. Its totient is φ = 2942721532.

The previous prime is 2942721527. The next prime is 2942721563. The reversal of 2942721533 is 3351272492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2921726809 + 20994724 = 54053^2 + 4582^2 .

It is a cyclic number.

It is not a de Polignac number, because 2942721533 - 2⁴ = 2942721517 is a prime.

It is a super-2 number, since 2×2942721533² = 17319220041563740178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2942721563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471360766 + 1471360767.

It is an arithmetic number, because the mean of its divisors is an integer number (1471360767).

Almost surely, 2^2942721533 is an apocalyptic number.

It is an amenable number.

2942721533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2942721533 is an equidigital number, since it uses as much as digits as its factorization.

2942721533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 2942721533 is about 54246.8573559796. The cubic root of 2942721533 is about 1433.0116542165.

The spelling of 2942721533 in words is "two billion, nine hundred forty-two million, seven hundred twenty-one thousand, five hundred thirty-three".