1401455123 has 4 divisors (see below), whose sum is σ = 1401537528. Its totient is φ = 1401372720.

The previous prime is 1401455117. The next prime is 1401455137. The reversal of 1401455123 is 3215541041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1401455123 - 2⁸ = 1401454867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401455092 and 1401455101.

It is not an unprimeable number, because it can be changed into a prime (1401755123) 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, 5213 + ... + 53198.

It is an arithmetic number, because the mean of its divisors is an integer number (350384382).

Almost surely, 2^1401455123 is an apocalyptic number.

1401455123 is a deficient number, since it is larger than the sum of its proper divisors (82405).

1401455123 is an equidigital number, since it uses as much as digits as its factorization.

1401455123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82404.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1401455123 is about 37436.0137167407. The cubic root of 1401455123 is about 1119.0763864529.

Adding to 1401455123 its reverse (3215541041), we get a palindrome (4616996164).

The spelling of 1401455123 in words is "one billion, four hundred one million, four hundred fifty-five thousand, one hundred twenty-three".