48135321 has 24 divisors (see below), whose sum is σ = 75323976. Its totient is φ = 29445120.

The previous prime is 48135319. The next prime is 48135323. The reversal of 48135321 is 12353184.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (48135319) and next prime (48135323).

It can be written as a sum of positive squares in 4 ways, for example, as 318096 + 47817225 = 564^2 + 6915^2 .

It is not a de Polignac number, because 48135321 - 2¹ = 48135319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48135323) 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, 20041 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (3138499).

Almost surely, 2^48135321 is an apocalyptic number.

It is an amenable number.

48135321 is a deficient number, since it is larger than the sum of its proper divisors (27188655).

48135321 is a wasteful number, since it uses less digits than its factorization.

48135321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473 (or 2470 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 48135321 is about 6937.9623089204. The cubic root of 48135321 is about 363.7653183757.

The spelling of 48135321 in words is "forty-eight million, one hundred thirty-five thousand, three hundred twenty-one".