12146031 has 20 divisors (see below), whose sum is σ = 18318432. Its totient is φ = 8019648.

The previous prime is 12146023. The next prime is 12146039. The reversal of 12146031 is 13064121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12146023) and next prime (12146039).

It is not a de Polignac number, because 12146031 - 2³ = 12146023 is a prime.

It is a super-2 number, since 2×12146031² = 295052138105922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12145995 and 12146013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12146039) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8490 + ... + 9816.

Almost surely, 2^12146031 is an apocalyptic number.

12146031 is a deficient number, since it is larger than the sum of its proper divisors (6172401).

12146031 is a wasteful number, since it uses less digits than its factorization.

12146031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12146031 is about 3485.1156365320. The cubic root of 12146031 is about 229.8677942170.

The spelling of 12146031 in words is "twelve million, one hundred forty-six thousand, thirty-one".