253459247189 has 8 divisors (see below), whose sum is σ = 262262847000. Its totient is φ = 244659889152.

The previous prime is 253459247123. The next prime is 253459247231. The reversal of 253459247189 is 981742954352.

It can be written as a sum of positive squares in 4 ways, for example, as 963047089 + 252496200100 = 31033^2 + 502490^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 253459247189 - 2³² = 249164279893 is a prime.

It is a super-2 number, since 2×253459247189² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253459247389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938624 + ... + 1178105.

It is an arithmetic number, because the mean of its divisors is an integer number (32782855875).

Almost surely, 2^253459247189 is an apocalyptic number.

253459247189 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

253459247189 is a deficient number, since it is larger than the sum of its proper divisors (8803599811).

253459247189 is a wasteful number, since it uses less digits than its factorization.

253459247189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120887.

The product of its digits is 21772800, while the sum is 59.

The spelling of 253459247189 in words is "two hundred fifty-three billion, four hundred fifty-nine million, two hundred forty-seven thousand, one hundred eighty-nine".