12609465 has 16 divisors (see below), whose sum is σ = 22009536. Its totient is φ = 6113600.

The previous prime is 12609463. The next prime is 12609481. The reversal of 12609465 is 56490621.

12609465 = T₇₂₆ + T₇₂₇ + ... + T₇₇₀.

12609465 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12609465 - 2¹ = 12609463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12609463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38046 + ... + 38375.

It is an arithmetic number, because the mean of its divisors is an integer number (1375596).

Almost surely, 2^12609465 is an apocalyptic number.

12609465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12609465 is a deficient number, since it is larger than the sum of its proper divisors (9400071).

12609465 is a wasteful number, since it uses less digits than its factorization.

12609465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76440.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 12609465 is about 3550.9808504130. The cubic root of 12609465 is about 232.7549290706.

The spelling of 12609465 in words is "twelve million, six hundred nine thousand, four hundred sixty-five".