157838555 has 12 divisors (see below), whose sum is σ = 220330080. Its totient is φ = 108231984.

The previous prime is 157838519. The next prime is 157838579. The reversal of 157838555 is 555838751.

It is not a de Polignac number, because 157838555 - 2¹² = 157834459 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321875 + ... + 322364.

It is an arithmetic number, because the mean of its divisors is an integer number (18360840).

Almost surely, 2^157838555 is an apocalyptic number.

157838555 is a deficient number, since it is larger than the sum of its proper divisors (62491525).

157838555 is an equidigital number, since it uses as much as digits as its factorization.

157838555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644258 (or 644251 counting only the distinct ones).

The product of its digits is 840000, while the sum is 47.

The square root of 157838555 is about 12563.3815113607. The cubic root of 157838555 is about 540.4278216859.

The spelling of 157838555 in words is "one hundred fifty-seven million, eight hundred thirty-eight thousand, five hundred fifty-five".