2144662501 has 4 divisors (see below), whose sum is σ = 2144787904. Its totient is φ = 2144537100.

The previous prime is 2144662483. The next prime is 2144662511. The reversal of 2144662501 is 1052664412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2144662501 - 2¹⁷ = 2144531429 is a prime.

It is a super-3 number, since 3×2144662501³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144662511) 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, 32055 + ... + 72916.

It is an arithmetic number, because the mean of its divisors is an integer number (536196976).

Almost surely, 2^2144662501 is an apocalyptic number.

It is an amenable number.

2144662501 is a deficient number, since it is larger than the sum of its proper divisors (125403).

2144662501 is a wasteful number, since it uses less digits than its factorization.

2144662501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125402.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2144662501 is about 46310.5009797994. The cubic root of 2144662501 is about 1289.5939472760.

The spelling of 2144662501 in words is "two billion, one hundred forty-four million, six hundred sixty-two thousand, five hundred one".