2145145501461 has 8 divisors (see below), whose sum is σ = 2860219761664. Its totient is φ = 1430084121120.

The previous prime is 2145145501459. The next prime is 2145145501481. The reversal of 2145145501461 is 1641055415412.

It is a happy number.

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

It is not a de Polignac number, because 2145145501461 - 2¹ = 2145145501459 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145145501481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2824405 + ... + 3502506.

It is an arithmetic number, because the mean of its divisors is an integer number (357527470208).

Almost surely, 2^{2145145501461} is an apocalyptic number.

It is an amenable number.

2145145501461 is a deficient number, since it is larger than the sum of its proper divisors (715074260203).

2145145501461 is a wasteful number, since it uses less digits than its factorization.

2145145501461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439931.

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 2145145501461 in words is "two trillion, one hundred forty-five billion, one hundred forty-five million, five hundred one thousand, four hundred sixty-one".