45145777 has 2 divisors, whose sum is σ = 45145778. Its totient is φ = 45145776.

The previous prime is 45145753. The next prime is 45145787. The reversal of 45145777 is 77754154.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40056241 + 5089536 = 6329^2 + 2256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45145777 is a prime.

It is not a weakly prime, because it can be changed into another prime (45145717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22572888 + 22572889.

It is an arithmetic number, because the mean of its divisors is an integer number (22572889).

Almost surely, 2^45145777 is an apocalyptic number.

It is an amenable number.

45145777 is a deficient number, since it is larger than the sum of its proper divisors (1).

45145777 is an equidigital number, since it uses as much as digits as its factorization.

45145777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 137200, while the sum is 40.

The square root of 45145777 is about 6719.0607230475. The cubic root of 45145777 is about 356.0730003266.

The spelling of 45145777 in words is "forty-five million, one hundred forty-five thousand, seven hundred seventy-seven".