48148581 has 32 divisors (see below), whose sum is σ = 72300928. Its totient is φ = 28304640.

The previous prime is 48148559. The next prime is 48148589. The reversal of 48148581 is 18584184.

It is not a de Polignac number, because 48148581 - 2¹⁷ = 48017509 is a prime.

It is a super-2 number, since 2×48148581² = 4636571704627122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48148589) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87750 + ... + 88296.

It is an arithmetic number, because the mean of its divisors is an integer number (2259404).

Almost surely, 2^48148581 is an apocalyptic number.

It is an amenable number.

48148581 is a deficient number, since it is larger than the sum of its proper divisors (24152347).

48148581 is a wasteful number, since it uses less digits than its factorization.

48148581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its digits is 40960, while the sum is 39.

The square root of 48148581 is about 6938.9178551126. The cubic root of 48148581 is about 363.7987178640.

The spelling of 48148581 in words is "forty-eight million, one hundred forty-eight thousand, five hundred eighty-one".