298091157 has 60 divisors (see below), whose sum is σ = 507927456. Its totient is φ = 155020320.

The previous prime is 298091149. The next prime is 298091161. The reversal of 298091157 is 751190892.

It is not a de Polignac number, because 298091157 - 2³ = 298091149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298091117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4198432 + ... + 4198502.

Almost surely, 2^298091157 is an apocalyptic number.

It is an amenable number.

298091157 is a deficient number, since it is larger than the sum of its proper divisors (209836299).

298091157 is an frugal number, since it uses more digits than its factorization.

298091157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 298091157 is about 17265.3165913632. The cubic root of 298091157 is about 668.0101031436.

The spelling of 298091157 in words is "two hundred ninety-eight million, ninety-one thousand, one hundred fifty-seven".