253542105 has 12 divisors (see below), whose sum is σ = 439473060. Its totient is φ = 135222432.

The previous prime is 253542083. The next prime is 253542127. The reversal of 253542105 is 501245352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (253542083) and next prime (253542127).

It can be written as a sum of positive squares in 2 ways, for example, as 181360089 + 72182016 = 13467^2 + 8496^2 .

It is not a de Polignac number, because 253542105 - 2⁹ = 253541593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2817090 + ... + 2817179.

It is an arithmetic number, because the mean of its divisors is an integer number (36622755).

Almost surely, 2^253542105 is an apocalyptic number.

It is an amenable number.

253542105 is a deficient number, since it is larger than the sum of its proper divisors (185930955).

253542105 is a wasteful number, since it uses less digits than its factorization.

253542105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634280 (or 5634277 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 253542105 is about 15923.0055265958. The cubic root of 253542105 is about 632.9217650740.

Adding to 253542105 its reverse (501245352), we get a palindrome (754787457).

The spelling of 253542105 in words is "two hundred fifty-three million, five hundred forty-two thousand, one hundred five".