48091945 has 16 divisors (see below), whose sum is σ = 66271680. Its totient is φ = 33134400.

The previous prime is 48091891. The next prime is 48091949. The reversal of 48091945 is 54919084.

It is not a de Polignac number, because 48091945 - 2¹⁷ = 47960873 is a prime.

It is a super-3 number, since 3×48091945³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 48091898 and 48091907.

It is not an unprimeable number, because it can be changed into a prime (48091949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21966 + ... + 24055.

It is an arithmetic number, because the mean of its divisors is an integer number (4141980).

Almost surely, 2^48091945 is an apocalyptic number.

It is an amenable number.

48091945 is a deficient number, since it is larger than the sum of its proper divisors (18179735).

48091945 is a wasteful number, since it uses less digits than its factorization.

48091945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46056.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 48091945 is about 6934.8356144901. The cubic root of 48091945 is about 363.6560193826.

The spelling of 48091945 in words is "forty-eight million, ninety-one thousand, nine hundred forty-five".