45955381 has 4 divisors (see below), whose sum is σ = 46377100. Its totient is φ = 45533664.

The previous prime is 45955333. The next prime is 45955397. The reversal of 45955381 is 18355954.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33466225 + 12489156 = 5785^2 + 3534^2 .

It is a cyclic number.

It is not a de Polignac number, because 45955381 - 2¹³ = 45947189 is a prime.

It is a super-2 number, since 2×45955381² = 4223794085710322, 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 (45955181) 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, 210696 + ... + 210913.

It is an arithmetic number, because the mean of its divisors is an integer number (11594275).

Almost surely, 2^45955381 is an apocalyptic number.

It is an amenable number.

45955381 is a deficient number, since it is larger than the sum of its proper divisors (421719).

45955381 is a wasteful number, since it uses less digits than its factorization.

45955381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421718.

The product of its digits is 108000, while the sum is 40.

The square root of 45955381 is about 6779.0398287663. The cubic root of 45955381 is about 358.1889003395.

The spelling of 45955381 in words is "forty-five million, nine hundred fifty-five thousand, three hundred eighty-one".