157055243 has 4 divisors (see below), whose sum is σ = 157099128. Its totient is φ = 157011360.

The previous prime is 157055237. The next prime is 157055279. The reversal of 157055243 is 342550751.

157055243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157055243 - 2⁶ = 157055179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157055233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16046 + ... + 23907.

It is an arithmetic number, because the mean of its divisors is an integer number (39274782).

Almost surely, 2^157055243 is an apocalyptic number.

157055243 is a deficient number, since it is larger than the sum of its proper divisors (43885).

157055243 is an equidigital number, since it uses as much as digits as its factorization.

157055243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43884.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 157055243 is about 12532.1683279471. The cubic root of 157055243 is about 539.5323374427.

The spelling of 157055243 in words is "one hundred fifty-seven million, fifty-five thousand, two hundred forty-three".