2145462646 has 8 divisors (see below), whose sum is σ = 3227744520. Its totient is φ = 1069547808.

The previous prime is 2145462643. The next prime is 2145462647. The reversal of 2145462646 is 6462645412.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2145462599 and 2145462608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145462643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590916 + ... + 1592263.

It is an arithmetic number, because the mean of its divisors is an integer number (403468065).

Almost surely, 2^2145462646 is an apocalyptic number.

2145462646 is a deficient number, since it is larger than the sum of its proper divisors (1082281874).

2145462646 is a wasteful number, since it uses less digits than its factorization.

2145462646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3183518.

The product of its digits is 276480, while the sum is 40.

The square root of 2145462646 is about 46319.1390895815. The cubic root of 2145462646 is about 1289.7543041076.

It can be divided in two parts, 21454 and 62646, that added together give a square (84100 = 290²).

The spelling of 2145462646 in words is "two billion, one hundred forty-five million, four hundred sixty-two thousand, six hundred forty-six".