45671945 has 16 divisors (see below), whose sum is σ = 63307008. Its totient is φ = 31261440.

The previous prime is 45671929. The next prime is 45671963. The reversal of 45671945 is 54917654.

It is not a de Polignac number, because 45671945 - 2⁴ = 45671929 is a prime.

It is a super-3 number, since 3×45671945³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23489 + ... + 25358.

It is an arithmetic number, because the mean of its divisors is an integer number (3956688).

Almost surely, 2^45671945 is an apocalyptic number.

It is an amenable number.

45671945 is a deficient number, since it is larger than the sum of its proper divisors (17635063).

45671945 is a wasteful number, since it uses less digits than its factorization.

45671945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48880.

The product of its digits is 151200, while the sum is 41.

The square root of 45671945 is about 6758.1021744274. The cubic root of 45671945 is about 357.4509884397.

The spelling of 45671945 in words is "forty-five million, six hundred seventy-one thousand, nine hundred forty-five".