157683743 has 4 divisors (see below), whose sum is σ = 180210000. Its totient is φ = 135157488.

The previous prime is 157683739. The next prime is 157683749. The reversal of 157683743 is 347386751.

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 157683743 - 2² = 157683739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157683694 and 157683703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157683749) 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, 11263118 + ... + 11263131.

It is an arithmetic number, because the mean of its divisors is an integer number (45052500).

Almost surely, 2^157683743 is an apocalyptic number.

157683743 is a deficient number, since it is larger than the sum of its proper divisors (22526257).

157683743 is an equidigital number, since it uses as much as digits as its factorization.

157683743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22526256.

The product of its digits is 423360, while the sum is 44.

The square root of 157683743 is about 12557.2187605377. The cubic root of 157683743 is about 540.2510755157.

The spelling of 157683743 in words is "one hundred fifty-seven million, six hundred eighty-three thousand, seven hundred forty-three".