45387031 has 2 divisors, whose sum is σ = 45387032. Its totient is φ = 45387030.

The previous prime is 45387019. The next prime is 45387037. The reversal of 45387031 is 13078354.

45387031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45387031 - 2⁹ = 45386519 is a prime.

It is a super-2 number, since 2×45387031² = 4119965165989922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45386984 and 45387002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45387037) 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 as a sum of consecutive naturals, namely, 22693515 + 22693516.

It is an arithmetic number, because the mean of its divisors is an integer number (22693516).

Almost surely, 2^45387031 is an apocalyptic number.

45387031 is a deficient number, since it is larger than the sum of its proper divisors (1).

45387031 is an equidigital number, since it uses as much as digits as its factorization.

45387031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 45387031 is about 6736.9897580448. The cubic root of 45387031 is about 356.7061453180.

The spelling of 45387031 in words is "forty-five million, three hundred eighty-seven thousand, thirty-one".