748173157 has 2 divisors, whose sum is σ = 748173158. Its totient is φ = 748173156.

The previous prime is 748173149. The next prime is 748173229. The reversal of 748173157 is 751371847.

It is a happy number.

748173157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 706815396 + 41357761 = 26586^2 + 6431^2 .

It is a cyclic number.

It is not a de Polignac number, because 748173157 - 2³ = 748173149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748173557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374086578 + 374086579.

It is an arithmetic number, because the mean of its divisors is an integer number (374086579).

Almost surely, 2^748173157 is an apocalyptic number.

It is an amenable number.

748173157 is a deficient number, since it is larger than the sum of its proper divisors (1).

748173157 is an equidigital number, since it uses as much as digits as its factorization.

748173157 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 748173157 is about 27352.7541026493. The cubic root of 748173157 is about 907.8220090900.

The spelling of 748173157 in words is "seven hundred forty-eight million, one hundred seventy-three thousand, one hundred fifty-seven".