157843797 has 4 divisors (see below), whose sum is σ = 210458400. Its totient is φ = 105229196.

The previous prime is 157843771. The next prime is 157843799. The reversal of 157843797 is 797348751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157843797 - 2¹⁴ = 157827413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157843799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26307297 + ... + 26307302.

It is an arithmetic number, because the mean of its divisors is an integer number (52614600).

Almost surely, 2^157843797 is an apocalyptic number.

It is an amenable number.

157843797 is a deficient number, since it is larger than the sum of its proper divisors (52614603).

157843797 is an equidigital number, since it uses as much as digits as its factorization.

157843797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52614602.

The product of its digits is 1481760, while the sum is 51.

The square root of 157843797 is about 12563.5901318055. The cubic root of 157843797 is about 540.4338043629.

The spelling of 157843797 in words is "one hundred fifty-seven million, eight hundred forty-three thousand, seven hundred ninety-seven".