157143803 has 4 divisors (see below), whose sum is σ = 159357168. Its totient is φ = 154930440.

The previous prime is 157143793. The next prime is 157143823. The reversal of 157143803 is 308341751.

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 157143803 - 2¹² = 157139707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157143803.

It is not an unprimeable number, because it can be changed into a prime (157143823) 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, 1106576 + ... + 1106717.

It is an arithmetic number, because the mean of its divisors is an integer number (39839292).

Almost surely, 2^157143803 is an apocalyptic number.

157143803 is a deficient number, since it is larger than the sum of its proper divisors (2213365).

157143803 is an equidigital number, since it uses as much as digits as its factorization.

157143803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213364.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 157143803 is about 12535.7011371522. The cubic root of 157143803 is about 539.6337285304.

The spelling of 157143803 in words is "one hundred fifty-seven million, one hundred forty-three thousand, eight hundred three".