149031 has 12 divisors (see below), whose sum is σ = 223080. Its totient is φ = 95760.

The previous prime is 149027. The next prime is 149033. The reversal of 149031 is 130941.

It is not a de Polignac number, because 149031 - 2² = 149027 is a prime.

It is a super-2 number, since 2×149031² = 44420477922, which contains 22 as substring.

149031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 148995 and 149013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25 + ... + 546.

It is an arithmetic number, because the mean of its divisors is an integer number (18590).

2¹⁴⁹⁰³¹ is an apocalyptic number.

149031 is a deficient number, since it is larger than the sum of its proper divisors (74049).

149031 is a wasteful number, since it uses less digits than its factorization.

149031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 149031 is about 386.0453341254. The cubic root of 149031 is about 53.0182682960.

Adding to 149031 its reverse (130941), we get a palindrome (279972).

It can be divided in two parts, 1490 and 31, that added together give a square (1521 = 39²).

The spelling of 149031 in words is "one hundred forty-nine thousand, thirty-one".