109157137 has 4 divisors (see below), whose sum is σ = 110786416. Its totient is φ = 107527860.

The previous prime is 109157093. The next prime is 109157143. The reversal of 109157137 is 731751901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109157137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109157197) 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 3 ways as a sum of consecutive naturals, for example, 814539 + ... + 814672.

It is an arithmetic number, because the mean of its divisors is an integer number (27696604).

Almost surely, 2^109157137 is an apocalyptic number.

It is an amenable number.

109157137 is a deficient number, since it is larger than the sum of its proper divisors (1629279).

109157137 is an equidigital number, since it uses as much as digits as its factorization.

109157137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629278.

The product of its (nonzero) digits is 6615, while the sum is 34.

The square root of 109157137 is about 10447.8292960787. The cubic root of 109157137 is about 477.9150555451.

The spelling of 109157137 in words is "one hundred nine million, one hundred fifty-seven thousand, one hundred thirty-seven".