45378311 has 12 divisors (see below), whose sum is σ = 50214024. Its totient is φ = 40669200.

The previous prime is 45378259. The next prime is 45378323. The reversal of 45378311 is 11387354.

45378311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-45378311 is a prime.

It is a super-2 number, since 2×45378311² = 4118382218425442, 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 (45378211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68321 + ... + 68981.

It is an arithmetic number, because the mean of its divisors is an integer number (4184502).

Almost surely, 2^45378311 is an apocalyptic number.

45378311 is a deficient number, since it is larger than the sum of its proper divisors (4835713).

45378311 is an equidigital number, since it uses as much as digits as its factorization.

45378311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 751 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 45378311 is about 6736.3425536414. The cubic root of 45378311 is about 356.6832997552.

The spelling of 45378311 in words is "forty-five million, three hundred seventy-eight thousand, three hundred eleven".