1234002001 has 16 divisors (see below), whose sum is σ = 1346284368. Its totient is φ = 1126656000.

The previous prime is 1234001947. The next prime is 1234002019. The reversal of 1234002001 is 1002004321.

It can be written as a sum of positive squares in 8 ways, for example, as 5569600 + 1228432401 = 2360^2 + 35049^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234002001 - 2¹³ = 1233993809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234002031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67551 + ... + 83851.

It is an arithmetic number, because the mean of its divisors is an integer number (84142773).

Almost surely, 2^1234002001 is an apocalyptic number.

It is an amenable number.

1234002001 is a deficient number, since it is larger than the sum of its proper divisors (112282367).

1234002001 is a wasteful number, since it uses less digits than its factorization.

1234002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16452.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1234002001 is about 35128.3646217697. The cubic root of 1234002001 is about 1072.6020466435.

Adding to 1234002001 its reverse (1002004321), we get a palindrome (2236006322).

The spelling of 1234002001 in words is "one billion, two hundred thirty-four million, two thousand, one".