48135969 has 24 divisors (see below), whose sum is σ = 82205760. Its totient is φ = 26556768.

The previous prime is 48135953. The next prime is 48135973. The reversal of 48135969 is 96953184.

It is a happy number.

48135969 is a `hidden beast` number, since 48 + 13 + 596 + 9 = 666.

It is not a de Polignac number, because 48135969 - 2⁴ = 48135953 is a prime.

It is a super-2 number, since 2×48135969² = 4634143023137922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48135929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11347 + ... + 15000.

It is an arithmetic number, because the mean of its divisors is an integer number (3425240).

Almost surely, 2^48135969 is an apocalyptic number.

It is an amenable number.

48135969 is a deficient number, since it is larger than the sum of its proper divisors (34069791).

48135969 is a wasteful number, since it uses less digits than its factorization.

48135969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26389 (or 26386 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 48135969 is about 6938.0090083539. The cubic root of 48135969 is about 363.7669507104.

The spelling of 48135969 in words is "forty-eight million, one hundred thirty-five thousand, nine hundred sixty-nine".