1144646501 has 8 divisors (see below), whose sum is σ = 1184582880. Its totient is φ = 1104741232.

The previous prime is 1144646491. The next prime is 1144646521. The reversal of 1144646501 is 1056464411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144646501 - 2¹⁴ = 1144630117 is a prime.

It is a super-2 number, since 2×1144646501² = 2620431224503086002, which contains 22 as substring.

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 (1144646521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86726 + ... + 99048.

It is an arithmetic number, because the mean of its divisors is an integer number (148072860).

Almost surely, 2^1144646501 is an apocalyptic number.

It is an amenable number.

1144646501 is a deficient number, since it is larger than the sum of its proper divisors (39936379).

1144646501 is a wasteful number, since it uses less digits than its factorization.

1144646501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15555.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1144646501 is about 33832.6248021048. The cubic root of 1144646501 is about 1046.0612833297.

The spelling of 1144646501 in words is "one billion, one hundred forty-four million, six hundred forty-six thousand, five hundred one".