12146755 has 8 divisors (see below), whose sum is σ = 15433632. Its totient is φ = 9145728.

The previous prime is 12146753. The next prime is 12146759. The reversal of 12146755 is 55764121.

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

It is not a de Polignac number, because 12146755 - 2¹ = 12146753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12146753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71367 + ... + 71536.

It is an arithmetic number, because the mean of its divisors is an integer number (1929204).

Almost surely, 2^12146755 is an apocalyptic number.

12146755 is a deficient number, since it is larger than the sum of its proper divisors (3286877).

12146755 is a wasteful number, since it uses less digits than its factorization.

12146755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142925.

The product of its digits is 8400, while the sum is 31.

The square root of 12146755 is about 3485.2195052823. The cubic root of 12146755 is about 229.8723614422.

The spelling of 12146755 in words is "twelve million, one hundred forty-six thousand, seven hundred fifty-five".