273245157 has 20 divisors (see below), whose sum is σ = 415889100. Its totient is φ = 178723584.

The previous prime is 273245143. The next prime is 273245201. The reversal of 273245157 is 751542372.

It can be written as a sum of positive squares in 2 ways, for example, as 124746561 + 148498596 = 11169^2 + 12186^2 .

It is not a de Polignac number, because 273245157 - 2¹¹ = 273243109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273245117) 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 in 19 ways as a sum of consecutive naturals, for example, 27532 + ... + 36117.

It is an arithmetic number, because the mean of its divisors is an integer number (20794455).

Almost surely, 2^273245157 is an apocalyptic number.

273245157 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

273245157 is a deficient number, since it is larger than the sum of its proper divisors (142643943).

273245157 is an equidigital number, since it uses as much as digits as its factorization.

273245157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63714 (or 63705 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 273245157 is about 16530.1287653787. The cubic root of 273245157 is about 648.9095380968.

The spelling of 273245157 in words is "two hundred seventy-three million, two hundred forty-five thousand, one hundred fifty-seven".