45493971 has 4 divisors (see below), whose sum is σ = 60658632. Its totient is φ = 30329312.

The previous prime is 45493963. The next prime is 45494017. The reversal of 45493971 is 17939454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45493971 - 2³ = 45493963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45493901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7582326 + ... + 7582331.

It is an arithmetic number, because the mean of its divisors is an integer number (15164658).

Almost surely, 2^45493971 is an apocalyptic number.

45493971 is a deficient number, since it is larger than the sum of its proper divisors (15164661).

45493971 is a wasteful number, since it uses less digits than its factorization.

45493971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15164660.

The product of its digits is 136080, while the sum is 42.

The square root of 45493971 is about 6744.9218675979. The cubic root of 45493971 is about 356.9860801640.

It can be divided in two parts, 45493 and 971, that added together give a palindrome (46464).

The spelling of 45493971 in words is "forty-five million, four hundred ninety-three thousand, nine hundred seventy-one".