45151973 has 2 divisors, whose sum is σ = 45151974. Its totient is φ = 45151972.

The previous prime is 45151969. The next prime is 45151979. The reversal of 45151973 is 37915154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45131524 + 20449 = 6718^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 45151973 - 2² = 45151969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45151979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22575986 + 22575987.

It is an arithmetic number, because the mean of its divisors is an integer number (22575987).

Almost surely, 2^45151973 is an apocalyptic number.

It is an amenable number.

45151973 is a deficient number, since it is larger than the sum of its proper divisors (1).

45151973 is an equidigital number, since it uses as much as digits as its factorization.

45151973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 35.

The square root of 45151973 is about 6719.5217835795. The cubic root of 45151973 is about 356.0892892432.

The spelling of 45151973 in words is "forty-five million, one hundred fifty-one thousand, nine hundred seventy-three".