157671142 has 8 divisors (see below), whose sum is σ = 237125376. Its totient is φ = 78629352.

The previous prime is 157671119. The next prime is 157671149. The reversal of 157671142 is 241176751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 157671098 and 157671107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157671149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102153 + ... + 103684.

It is an arithmetic number, because the mean of its divisors is an integer number (29640672).

Almost surely, 2^157671142 is an apocalyptic number.

157671142 is a deficient number, since it is larger than the sum of its proper divisors (79454234).

157671142 is a wasteful number, since it uses less digits than its factorization.

157671142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206222.

The product of its digits is 11760, while the sum is 34.

The square root of 157671142 is about 12556.7170072436. The cubic root of 157671142 is about 540.2366840825.

The spelling of 157671142 in words is "one hundred fifty-seven million, six hundred seventy-one thousand, one hundred forty-two".