249378011 has 2 divisors, whose sum is σ = 249378012. Its totient is φ = 249378010.

The previous prime is 249377987. The next prime is 249378037. The reversal of 249378011 is 110873942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249378011 - 2¹⁰ = 249376987 is a prime.

It is a super-2 number, since 2×249378011² = 124378784740632242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (249378071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124689005 + 124689006.

It is an arithmetic number, because the mean of its divisors is an integer number (124689006).

Almost surely, 2^249378011 is an apocalyptic number.

249378011 is a deficient number, since it is larger than the sum of its proper divisors (1).

249378011 is an equidigital number, since it uses as much as digits as its factorization.

249378011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 249378011 is about 15791.7070324902. The cubic root of 249378011 is about 629.4376530574.

The spelling of 249378011 in words is "two hundred forty-nine million, three hundred seventy-eight thousand, eleven".