253964361 has 8 divisors (see below), whose sum is σ = 386993344. Its totient is φ = 145122480.

The previous prime is 253964357. The next prime is 253964383. The reversal of 253964361 is 163469352.

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

It is not a de Polignac number, because 253964361 - 2² = 253964357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253964341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6046750 + ... + 6046791.

It is an arithmetic number, because the mean of its divisors is an integer number (48374168).

Almost surely, 2^253964361 is an apocalyptic number.

253964361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

253964361 is a deficient number, since it is larger than the sum of its proper divisors (133028983).

253964361 is a wasteful number, since it uses less digits than its factorization.

253964361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12093551.

The product of its digits is 116640, while the sum is 39.

The square root of 253964361 is about 15936.2593164143. The cubic root of 253964361 is about 633.2729319744.

The spelling of 253964361 in words is "two hundred fifty-three million, nine hundred sixty-four thousand, three hundred sixty-one".