1401553405 has 16 divisors (see below), whose sum is σ = 1922745600. Its totient is φ = 960757632.

The previous prime is 1401553357. The next prime is 1401553421. The reversal of 1401553405 is 5043551041.

It is a cyclic number.

It is not a de Polignac number, because 1401553405 - 2¹³ = 1401545213 is a prime.

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, 185257 + ... + 192673.

It is an arithmetic number, because the mean of its divisors is an integer number (120171600).

Almost surely, 2^1401553405 is an apocalyptic number.

It is an amenable number.

1401553405 is a deficient number, since it is larger than the sum of its proper divisors (521192195).

1401553405 is an equidigital number, since it uses as much as digits as its factorization.

1401553405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12828.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1401553405 is about 37437.3263601983. The cubic root of 1401553405 is about 1119.1025455720.

The spelling of 1401553405 in words is "one billion, four hundred one million, five hundred fifty-three thousand, four hundred five".