748131577 has 2 divisors, whose sum is σ = 748131578. Its totient is φ = 748131576.

The previous prime is 748131569. The next prime is 748131599. The reversal of 748131577 is 775131847.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459845136 + 288286441 = 21444^2 + 16979^2 .

It is a cyclic number.

It is not a de Polignac number, because 748131577 - 2³ = 748131569 is a prime.

It is not a weakly prime, because it can be changed into another prime (748131547) 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, 374065788 + 374065789.

It is an arithmetic number, because the mean of its divisors is an integer number (374065789).

Almost surely, 2^748131577 is an apocalyptic number.

It is an amenable number.

748131577 is a deficient number, since it is larger than the sum of its proper divisors (1).

748131577 is an equidigital number, since it uses as much as digits as its factorization.

748131577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164640, while the sum is 43.

The square root of 748131577 is about 27351.9940223743. The cubic root of 748131577 is about 907.8051912638.

The spelling of 748131577 in words is "seven hundred forty-eight million, one hundred thirty-one thousand, five hundred seventy-seven".