1351022401 has 4 divisors (see below), whose sum is σ = 1351879600. Its totient is φ = 1350165204.

The previous prime is 1351022399. The next prime is 1351022411. The reversal of 1351022401 is 1042201531.

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 1351022401 - 2¹ = 1351022399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351022411) 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, 426231 + ... + 429388.

It is an arithmetic number, because the mean of its divisors is an integer number (337969900).

Almost surely, 2^1351022401 is an apocalyptic number.

It is an amenable number.

1351022401 is a deficient number, since it is larger than the sum of its proper divisors (857199).

1351022401 is an equidigital number, since it uses as much as digits as its factorization.

1351022401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857198.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1351022401 is about 36756.2566238729. The cubic root of 1351022401 is about 1105.4883834470.

Adding to 1351022401 its reverse (1042201531), we get a palindrome (2393223932).

The spelling of 1351022401 in words is "one billion, three hundred fifty-one million, twenty-two thousand, four hundred one".