1402121341 has 4 divisors (see below), whose sum is σ = 1402244284. Its totient is φ = 1401998400.

The previous prime is 1402121333. The next prime is 1402121353. The reversal of 1402121341 is 1431212041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 718508025 + 683613316 = 26805^2 + 26146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402121341 - 2³ = 1402121333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402121311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42390 + ... + 67831.

It is an arithmetic number, because the mean of its divisors is an integer number (350561071).

Almost surely, 2^1402121341 is an apocalyptic number.

It is an amenable number.

1402121341 is a deficient number, since it is larger than the sum of its proper divisors (122943).

1402121341 is a wasteful number, since it uses less digits than its factorization.

1402121341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122942.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1402121341 is about 37444.9107489923. The cubic root of 1402121341 is about 1119.2536856786.

Adding to 1402121341 its reverse (1431212041), we get a palindrome (2833333382).

The spelling of 1402121341 in words is "one billion, four hundred two million, one hundred twenty-one thousand, three hundred forty-one".