151001 has 4 divisors (see below), whose sum is σ = 155904. Its totient is φ = 146100.

The previous prime is 150991. The next prime is 151007. The reversal of 151001 is 100151.

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-151001 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 151001.

It is not an unprimeable number, because it can be changed into a prime (151007) 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, 2405 + ... + 2466.

It is an arithmetic number, because the mean of its divisors is an integer number (38976).

2¹⁵¹⁰⁰¹ is an apocalyptic number.

It is an amenable number.

151001 is a deficient number, since it is larger than the sum of its proper divisors (4903).

151001 is an equidigital number, since it uses as much as digits as its factorization.

151001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4902.

The product of its (nonzero) digits is 5, while the sum is 8.

The square root of 151001 is about 388.5884712649. The cubic root of 151001 is about 53.2508577672.

Adding to 151001 its reverse (100151), we get a palindrome (251152).

The spelling of 151001 in words is "one hundred fifty-one thousand, one".