1401425155 has 8 divisors (see below), whose sum is σ = 1811072592. Its totient is φ = 1034898528.

The previous prime is 1401425147. The next prime is 1401425173. The reversal of 1401425155 is 5515241041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1401425155 - 2³ = 1401425147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10780129 + ... + 10780258.

It is an arithmetic number, because the mean of its divisors is an integer number (226384074).

Almost surely, 2^1401425155 is an apocalyptic number.

1401425155 is a deficient number, since it is larger than the sum of its proper divisors (409647437).

1401425155 is a wasteful number, since it uses less digits than its factorization.

1401425155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21560405.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1401425155 is about 37435.6134583100. The cubic root of 1401425155 is about 1119.0684098103.

Adding to 1401425155 its reverse (5515241041), we get a palindrome (6916666196).

The spelling of 1401425155 in words is "one billion, four hundred one million, four hundred twenty-five thousand, one hundred fifty-five".