2945531 has 2 divisors, whose sum is σ = 2945532. Its totient is φ = 2945530.

The previous prime is 2945519. The next prime is 2945609. The reversal of 2945531 is 1355492.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2945531 - 2¹⁰ = 2944507 is a prime.

It is a super-2 number, since 2×2945531² = 17352305743922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2945494 and 2945503.

It is not a weakly prime, because it can be changed into another prime (2945731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1472765 + 1472766.

It is an arithmetic number, because the mean of its divisors is an integer number (1472766).

2^2945531 is an apocalyptic number.

2945531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2945531 is an equidigital number, since it uses as much as digits as its factorization.

2945531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 2945531 is about 1716.2549344430. The cubic root of 2945531 is about 143.3467549477.

The spelling of 2945531 in words is "two million, nine hundred forty-five thousand, five hundred thirty-one".