253809741 has 8 divisors (see below), whose sum is σ = 349329664. Its totient is φ = 163748160.

The previous prime is 253809727. The next prime is 253809757. The reversal of 253809741 is 147908352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253809741 - 2¹⁵ = 253776973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253809741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253809701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364476 + ... + 1364661.

It is an arithmetic number, because the mean of its divisors is an integer number (43666208).

Almost surely, 2^253809741 is an apocalyptic number.

It is an amenable number.

253809741 is a deficient number, since it is larger than the sum of its proper divisors (95519923).

253809741 is a wasteful number, since it uses less digits than its factorization.

253809741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729171.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 253809741 is about 15931.4073766256. The cubic root of 253809741 is about 633.1443882967.

The spelling of 253809741 in words is "two hundred fifty-three million, eight hundred nine thousand, seven hundred forty-one".