45491193 has 32 divisors (see below), whose sum is σ = 74390400. Its totient is φ = 27244800.

The previous prime is 45491189. The next prime is 45491197. The reversal of 45491193 is 39119454.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45491189) and next prime (45491197).

It is not a de Polignac number, because 45491193 - 2² = 45491189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45491197) 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, 25573 + ... + 27293.

It is an arithmetic number, because the mean of its divisors is an integer number (2324700).

Almost surely, 2^45491193 is an apocalyptic number.

It is an amenable number.

45491193 is a deficient number, since it is larger than the sum of its proper divisors (28899207).

45491193 is a wasteful number, since it uses less digits than its factorization.

45491193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1824 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 45491193 is about 6744.7159317498. The cubic root of 45491193 is about 356.9788137982.

The spelling of 45491193 in words is "forty-five million, four hundred ninety-one thousand, one hundred ninety-three".