45949189 has 8 divisors (see below), whose sum is σ = 53982432. Its totient is φ = 38558640.

The previous prime is 45949109. The next prime is 45949207. The reversal of 45949189 is 98194954.

It is a happy number.

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 45949189 - 2¹³ = 45940997 is a prime.

It is a super-2 number, since 2×45949189² = 4222655939515442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45949109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160519 + ... + 160804.

It is an arithmetic number, because the mean of its divisors is an integer number (6747804).

Almost surely, 2^45949189 is an apocalyptic number.

It is an amenable number.

45949189 is a deficient number, since it is larger than the sum of its proper divisors (8033243).

45949189 is a wasteful number, since it uses less digits than its factorization.

45949189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321347.

The product of its digits is 466560, while the sum is 49.

The square root of 45949189 is about 6778.5831115359. The cubic root of 45949189 is about 358.1728122323.

It can be divided in two parts, 4594 and 9189, that multiplied together give a triangular number (42214266 = T₉₁₈₈).

The spelling of 45949189 in words is "forty-five million, nine hundred forty-nine thousand, one hundred eighty-nine".