1424156645 has 8 divisors (see below), whose sum is σ = 1711835160. Its totient is φ = 1137427200.

The previous prime is 1424156641. The next prime is 1424156653. The reversal of 1424156645 is 5466514241.

It is a happy number.

It is a Cunningham number, because it is equal to 37738²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 75724804 + 1348431841 = 8702^2 + 36721^2 .

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

It is not a de Polignac number, because 1424156645 - 2² = 1424156641 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1424156599 and 1424156608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424156641) 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, 233960 + ... + 239969.

It is an arithmetic number, because the mean of its divisors is an integer number (213979395).

Almost surely, 2^1424156645 is an apocalyptic number.

It is an amenable number.

1424156645 is a deficient number, since it is larger than the sum of its proper divisors (287678515).

1424156645 is an equidigital number, since it uses as much as digits as its factorization.

1424156645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474535.

The product of its digits is 115200, while the sum is 38.

The square root of 1424156645 is about 37738.0000132492. Note that the first 4 decimals coincide. The cubic root of 1424156645 is about 1125.0865171323.

The spelling of 1424156645 in words is "one billion, four hundred twenty-four million, one hundred fifty-six thousand, six hundred forty-five".