157446143 has 4 divisors (see below), whose sum is σ = 158245560. Its totient is φ = 156646728.

The previous prime is 157446139. The next prime is 157446151. The reversal of 157446143 is 341644751.

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 157446143 - 2² = 157446139 is a prime.

It is a super-3 number, since 3×157446143³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157446343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399413 + ... + 399806.

It is an arithmetic number, because the mean of its divisors is an integer number (39561390).

Almost surely, 2^157446143 is an apocalyptic number.

157446143 is a deficient number, since it is larger than the sum of its proper divisors (799417).

157446143 is an equidigital number, since it uses as much as digits as its factorization.

157446143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799416.

The product of its digits is 40320, while the sum is 35.

The square root of 157446143 is about 12547.7545003080. The cubic root of 157446143 is about 539.9795865626.

The spelling of 157446143 in words is "one hundred fifty-seven million, four hundred forty-six thousand, one hundred forty-three".