151000231 has 4 divisors (see below), whose sum is σ = 151904592. Its totient is φ = 150095872.

The previous prime is 151000217. The next prime is 151000249. The reversal of 151000231 is 132000151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 151000231 - 2²⁵ = 117445799 is a prime.

It is a super-2 number, since 2×151000231² = 45602139524106722, which contains 22 as substring.

It is a Duffinian number.

151000231 is a modest number, since divided by 231 gives 151 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151000271) 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, 451930 + ... + 452263.

It is an arithmetic number, because the mean of its divisors is an integer number (37976148).

Almost surely, 2^151000231 is an apocalyptic number.

151000231 is a deficient number, since it is larger than the sum of its proper divisors (904361).

151000231 is an equidigital number, since it uses as much as digits as its factorization.

151000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904360.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 151000231 is about 12288.2151266976. The cubic root of 151000231 is about 532.5076737049.

Adding to 151000231 its reverse (132000151), we get a palindrome (283000382).

The spelling of 151000231 in words is "one hundred fifty-one million, two hundred thirty-one", and thus it is an aban number.