157969803 has 4 divisors (see below), whose sum is σ = 210626408. Its totient is φ = 105313200.

The previous prime is 157969793. The next prime is 157969807. The reversal of 157969803 is 308969751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308969751 = 3 ⋅102989917.

It is not a de Polignac number, because 157969803 - 2⁴ = 157969787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157969807) 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, 26328298 + ... + 26328303.

It is an arithmetic number, because the mean of its divisors is an integer number (52656602).

Almost surely, 2^157969803 is an apocalyptic number.

157969803 is a deficient number, since it is larger than the sum of its proper divisors (52656605).

157969803 is an equidigital number, since it uses as much as digits as its factorization.

157969803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52656604.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 157969803 is about 12568.6038604135. The cubic root of 157969803 is about 540.5775747455.

The spelling of 157969803 in words is "one hundred fifty-seven million, nine hundred sixty-nine thousand, eight hundred three".