356123401 has 4 divisors (see below), whose sum is σ = 357931332. Its totient is φ = 354315472.

The previous prime is 356123399. The next prime is 356123413. The reversal of 356123401 is 104321653.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104321653 = 1663 ⋅62731.

It can be written as a sum of positive squares in 2 ways, for example, as 345067776 + 11055625 = 18576^2 + 3325^2 .

It is a cyclic number.

It is not a de Polignac number, because 356123401 - 2¹ = 356123399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (356123431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903670 + ... + 904063.

It is an arithmetic number, because the mean of its divisors is an integer number (89482833).

Almost surely, 2^356123401 is an apocalyptic number.

It is an amenable number.

356123401 is a deficient number, since it is larger than the sum of its proper divisors (1807931).

356123401 is a wasteful number, since it uses less digits than its factorization.

356123401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807930.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 356123401 is about 18871.2321007400. The cubic root of 356123401 is about 708.8159866689.

It can be divided in two parts, 3561 and 23401, that added together give a palindrome (26962).

The spelling of 356123401 in words is "three hundred fifty-six million, one hundred twenty-three thousand, four hundred one".