201401455 has 16 divisors (see below), whose sum is σ = 253186560. Its totient is φ = 153506848.

The previous prime is 201401429. The next prime is 201401479. The reversal of 201401455 is 554104102.

It is a cyclic number.

It is not a de Polignac number, because 201401455 - 2¹³ = 201393263 is a prime.

It is a super-2 number, since 2×201401455² = 81125092152234050, which contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 26916 + ... + 33574.

It is an arithmetic number, because the mean of its divisors is an integer number (15824160).

Almost surely, 2^201401455 is an apocalyptic number.

201401455 is a deficient number, since it is larger than the sum of its proper divisors (51785105).

201401455 is a wasteful number, since it uses less digits than its factorization.

201401455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 201401455 is about 14191.5980425039. The cubic root of 201401455 is about 586.1663292133.

Adding to 201401455 its reverse (554104102), we get a palindrome (755505557).

The spelling of 201401455 in words is "two hundred one million, four hundred one thousand, four hundred fifty-five".