149825231 has 8 divisors (see below), whose sum is σ = 151626384. Its totient is φ = 148032640.

The previous prime is 149825227. The next prime is 149825239. The reversal of 149825231 is 132528941.

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

It is a cyclic number.

It is not a de Polignac number, because 149825231 - 2² = 149825227 is a prime.

It is a super-2 number, since 2×149825231² = 44895199688406722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149825191 and 149825200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149825239) 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, 37301 + ... + 41121.

It is an arithmetic number, because the mean of its divisors is an integer number (18953298).

Almost surely, 2^149825231 is an apocalyptic number.

149825231 is a deficient number, since it is larger than the sum of its proper divisors (1801153).

149825231 is a wasteful number, since it uses less digits than its factorization.

149825231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281.

The product of its digits is 17280, while the sum is 35.

The square root of 149825231 is about 12240.3117198869. The cubic root of 149825231 is about 531.1228490899.

The spelling of 149825231 in words is "one hundred forty-nine million, eight hundred twenty-five thousand, two hundred thirty-one".