1356435401 has 4 divisors (see below), whose sum is σ = 1356610512. Its totient is φ = 1356260292.

The previous prime is 1356435397. The next prime is 1356435523. The reversal of 1356435401 is 1045346531.

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 1356435401 - 2² = 1356435397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356425401) 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, 75371 + ... + 91616.

It is an arithmetic number, because the mean of its divisors is an integer number (339152628).

Almost surely, 2^1356435401 is an apocalyptic number.

It is an amenable number.

1356435401 is a deficient number, since it is larger than the sum of its proper divisors (175111).

1356435401 is an equidigital number, since it uses as much as digits as its factorization.

1356435401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175110.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1356435401 is about 36829.8167386155. The cubic root of 1356435401 is about 1106.9628308786.

The spelling of 1356435401 in words is "one billion, three hundred fifty-six million, four hundred thirty-five thousand, four hundred one".