2490101 has 2 divisors, whose sum is σ = 2490102. Its totient is φ = 2490100.

The previous prime is 2490091. The next prime is 2490119. The reversal of 2490101 is 1010942.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1957201 + 532900 = 1399^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 2490101 - 2¹⁰ = 2489077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2490101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2490161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245050 + 1245051.

It is an arithmetic number, because the mean of its divisors is an integer number (1245051).

2^2490101 is an apocalyptic number.

It is an amenable number.

2490101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2490101 is an equidigital number, since it uses as much as digits as its factorization.

2490101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2490101 is about 1578.0053865561. The cubic root of 2490101 is about 135.5415104094.

Subtracting from 2490101 its sum of digits (17), we obtain a square (2490084 = 1578²).

The spelling of 2490101 in words is "two million, four hundred ninety thousand, one hundred one".