2951021 has 2 divisors, whose sum is σ = 2951022. Its totient is φ = 2951020.

The previous prime is 2950999. The next prime is 2951027. The reversal of 2951021 is 1201592.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2937796 + 13225 = 1714^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 2951021 - 2¹⁴ = 2934637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2950984 and 2951002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2951027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1475510 + 1475511.

It is an arithmetic number, because the mean of its divisors is an integer number (1475511).

2^2951021 is an apocalyptic number.

It is an amenable number.

2951021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2951021 is an equidigital number, since it uses as much as digits as its factorization.

2951021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2951021 is about 1717.8536026100. The cubic root of 2951021 is about 143.4357581709.

The spelling of 2951021 in words is "two million, nine hundred fifty-one thousand, twenty-one".