45947519 has 4 divisors (see below), whose sum is σ = 46057080. Its totient is φ = 45837960.

The previous prime is 45947509. The next prime is 45947647. The reversal of 45947519 is 91574954.

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 45947519 - 2¹² = 45943423 is a prime.

It is a super-2 number, since 2×45947519² = 4222349004510722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 45947519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45947509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54149 + ... + 54990.

It is an arithmetic number, because the mean of its divisors is an integer number (11514270).

Almost surely, 2^45947519 is an apocalyptic number.

45947519 is a deficient number, since it is larger than the sum of its proper divisors (109561).

45947519 is a wasteful number, since it uses less digits than its factorization.

45947519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109560.

The product of its digits is 226800, while the sum is 44.

The square root of 45947519 is about 6778.4599283318. The cubic root of 45947519 is about 358.1684729766.

The spelling of 45947519 in words is "forty-five million, nine hundred forty-seven thousand, five hundred nineteen".