151101231 has 8 divisors (see below), whose sum is σ = 201866160. Its totient is φ = 100535232.

The previous prime is 151101221. The next prime is 151101233. The reversal of 151101231 is 132101151.

151101231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-151101231 is a prime.

It is a super-2 number, since 2×151101231² = 45663164019430722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 151101231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151101233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47950 + ... + 51003.

It is an arithmetic number, because the mean of its divisors is an integer number (25233270).

Almost surely, 2^151101231 is an apocalyptic number.

151101231 is a deficient number, since it is larger than the sum of its proper divisors (50764929).

151101231 is an equidigital number, since it uses as much as digits as its factorization.

151101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99465.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 151101231 is about 12292.3240682956. The cubic root of 151101231 is about 532.6263739385.

Adding to 151101231 its reverse (132101151), we get a palindrome (283202382).

The spelling of 151101231 in words is "one hundred fifty-one million, one hundred one thousand, two hundred thirty-one".