747528157 has 8 divisors (see below), whose sum is σ = 773674200. Its totient is φ = 721406784.

The previous prime is 747528151. The next prime is 747528163. The reversal of 747528157 is 751825747.

It is an interprime number because it is at equal distance from previous prime (747528151) and next prime (747528163).

It can be written as a sum of positive squares in 4 ways, for example, as 125574436 + 621953721 = 11206^2 + 24939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 747528157 - 2³ = 747528149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747528151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72819 + ... + 82447.

It is an arithmetic number, because the mean of its divisors is an integer number (96709275).

Almost surely, 2^747528157 is an apocalyptic number.

It is an amenable number.

747528157 is a deficient number, since it is larger than the sum of its proper divisors (26146043).

747528157 is a wasteful number, since it uses less digits than its factorization.

747528157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12335.

The product of its digits is 548800, while the sum is 46.

The square root of 747528157 is about 27340.9611572088. The cubic root of 747528157 is about 907.5610563337.

The spelling of 747528157 in words is "seven hundred forty-seven million, five hundred twenty-eight thousand, one hundred fifty-seven".