2145356 has 12 divisors (see below), whose sum is σ = 3841992. Its totient is φ = 1047648.

The previous prime is 2145343. The next prime is 2145359. The reversal of 2145356 is 6535412.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2145359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6065 + ... + 6408.

It is an arithmetic number, because the mean of its divisors is an integer number (320166).

2^2145356 is an apocalyptic number.

It is an amenable number.

2145356 is a deficient number, since it is larger than the sum of its proper divisors (1696636).

2145356 is a wasteful number, since it uses less digits than its factorization.

2145356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12520 (or 12518 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 2145356 is about 1464.7033829414. The cubic root of 2145356 is about 128.9732933516.

It can be divided in two parts, 214535 and 6, that multiplied together give a triangular number (1287210 = T₁₆₀₄).

The spelling of 2145356 in words is "two million, one hundred forty-five thousand, three hundred fifty-six".