45491961 has 8 divisors (see below), whose sum is σ = 60693984. Its totient is φ = 30308960.

The previous prime is 45491959. The next prime is 45491989. The reversal of 45491961 is 16919454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45491961 - 2¹ = 45491959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45491951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2341 + ... + 9821.

It is an arithmetic number, because the mean of its divisors is an integer number (7586748).

Almost surely, 2^45491961 is an apocalyptic number.

It is an amenable number.

45491961 is a deficient number, since it is larger than the sum of its proper divisors (15202023).

45491961 is a wasteful number, since it uses less digits than its factorization.

45491961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9511.

The product of its digits is 38880, while the sum is 39.

The square root of 45491961 is about 6744.7728649674. The cubic root of 45491961 is about 356.9808226719.

The spelling of 45491961 in words is "forty-five million, four hundred ninety-one thousand, nine hundred sixty-one".