157085743 has 4 divisors (see below), whose sum is σ = 157147480. Its totient is φ = 157024008.

The previous prime is 157085741. The next prime is 157085759. The reversal of 157085743 is 347580751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347580751 = 7 ⋅49654393.

It is a cyclic number.

It is not a de Polignac number, because 157085743 - 2¹ = 157085741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157085696 and 157085705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157085741) 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, 26880 + ... + 32197.

It is an arithmetic number, because the mean of its divisors is an integer number (39286870).

Almost surely, 2^157085743 is an apocalyptic number.

157085743 is a deficient number, since it is larger than the sum of its proper divisors (61737).

157085743 is an equidigital number, since it uses as much as digits as its factorization.

157085743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61736.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 157085743 is about 12533.3851373043. The cubic root of 157085743 is about 539.5672607620.

The spelling of 157085743 in words is "one hundred fifty-seven million, eighty-five thousand, seven hundred forty-three".