151109 has 4 divisors (see below), whose sum is σ = 172704. Its totient is φ = 129516.

The previous prime is 151091. The next prime is 151121. The reversal of 151109 is 901151.

It is a happy number.

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-151109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151169) 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, 10787 + ... + 10800.

It is an arithmetic number, because the mean of its divisors is an integer number (43176).

2¹⁵¹¹⁰⁹ is an apocalyptic number.

It is an amenable number.

151109 is a deficient number, since it is larger than the sum of its proper divisors (21595).

151109 is an equidigital number, since it uses as much as digits as its factorization.

151109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21594.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 151109 is about 388.7274109193. The cubic root of 151109 is about 53.2635502263.

The spelling of 151109 in words is "one hundred fifty-one thousand, one hundred nine".