1401455 has 16 divisors (see below), whose sum is σ = 1862784. Its totient is φ = 1003680.

The previous prime is 1401443. The next prime is 1401461. The reversal of 1401455 is 5541041.

It is not a de Polignac number, because 1401455 - 2⁸ = 1401199 is a prime.

It is a super-2 number, since 2×1401455² = 3928152234050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4412 + ... + 4718.

It is an arithmetic number, because the mean of its divisors is an integer number (116424).

2^1401455 is an apocalyptic number.

1401455 is a deficient number, since it is larger than the sum of its proper divisors (461329).

1401455 is a wasteful number, since it uses less digits than its factorization.

1401455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1401455 is about 1183.8306466721. The cubic root of 1401455 is about 111.9076353714.

Adding to 1401455 its reverse (5541041), we get a palindrome (6942496).

The spelling of 1401455 in words is "one million, four hundred one thousand, four hundred fifty-five".