45028831 has 2 divisors, whose sum is σ = 45028832. Its totient is φ = 45028830.

The previous prime is 45028817. The next prime is 45028847. The reversal of 45028831 is 13882054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45028831 - 2¹¹ = 45026783 is a prime.

It is a super-2 number, since 2×45028831² = 4055191242453122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45028793 and 45028802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45028861) 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 as a sum of consecutive naturals, namely, 22514415 + 22514416.

It is an arithmetic number, because the mean of its divisors is an integer number (22514416).

Almost surely, 2^45028831 is an apocalyptic number.

45028831 is a deficient number, since it is larger than the sum of its proper divisors (1).

45028831 is an equidigital number, since it uses as much as digits as its factorization.

45028831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 45028831 is about 6710.3525242717. The cubic root of 45028831 is about 355.7652762994.

It can be divided in two parts, 4502883 and 1, that added together give a square (4502884 = 2122²).

The spelling of 45028831 in words is "forty-five million, twenty-eight thousand, eight hundred thirty-one".