12146745 has 32 divisors (see below), whose sum is σ = 21111552. Its totient is φ = 5928192.

The previous prime is 12146741. The next prime is 12146749. The reversal of 12146745 is 54764121.

12146745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12146741) and next prime (12146749).

It is not a de Polignac number, because 12146745 - 2² = 12146741 is a prime.

It is a super-3 number, since 3×12146745³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12146741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32379 + ... + 32751.

It is an arithmetic number, because the mean of its divisors is an integer number (659736).

Almost surely, 2^12146745 is an apocalyptic number.

12146745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12146745 is a deficient number, since it is larger than the sum of its proper divisors (8964807).

12146745 is a wasteful number, since it uses less digits than its factorization.

12146745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its digits is 6720, while the sum is 30.

The square root of 12146745 is about 3485.2180706521. The cubic root of 12146745 is about 229.8722983602.

The spelling of 12146745 in words is "twelve million, one hundred forty-six thousand, seven hundred forty-five".