49072157 has 2 divisors, whose sum is σ = 49072158. Its totient is φ = 49072156.

The previous prime is 49072139. The next prime is 49072189. The reversal of 49072157 is 75127094.

49072157 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., 26925721 + 22146436 = 5189^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 49072157 - 2¹⁶ = 49006621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49072357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24536078 + 24536079.

It is an arithmetic number, because the mean of its divisors is an integer number (24536079).

Almost surely, 2^49072157 is an apocalyptic number.

It is an amenable number.

49072157 is a deficient number, since it is larger than the sum of its proper divisors (1).

49072157 is an equidigital number, since it uses as much as digits as its factorization.

49072157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 49072157 is about 7005.1521753635. The cubic root of 49072157 is about 366.1101050282.

The spelling of 49072157 in words is "forty-nine million, seventy-two thousand, one hundred fifty-seven".