249774001 has 4 divisors (see below), whose sum is σ = 254486772. Its totient is φ = 245061232.

The previous prime is 249773999. The next prime is 249774061. The reversal of 249774001 is 100477942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 184552225 + 65221776 = 13585^2 + 8076^2 .

It is a cyclic number.

It is not a de Polignac number, because 249774001 - 2¹ = 249773999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249774061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356306 + ... + 2356411.

It is an arithmetic number, because the mean of its divisors is an integer number (63621693).

Almost surely, 2^249774001 is an apocalyptic number.

It is an amenable number.

249774001 is a deficient number, since it is larger than the sum of its proper divisors (4712771).

249774001 is an equidigital number, since it uses as much as digits as its factorization.

249774001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712770.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 249774001 is about 15804.2399690716. The cubic root of 249774001 is about 629.7706404528.

The spelling of 249774001 in words is "two hundred forty-nine million, seven hundred seventy-four thousand, one".