1401045555 has 32 divisors (see below), whose sum is σ = 2758984704. Its totient is φ = 591209856.

The previous prime is 1401045511. The next prime is 1401045559. The reversal of 1401045555 is 5555401041.

It is not a de Polignac number, because 1401045555 - 2⁶ = 1401045491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401045559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511839 + ... + 514568.

It is an arithmetic number, because the mean of its divisors is an integer number (86218272).

Almost surely, 2^1401045555 is an apocalyptic number.

1401045555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1401045555 is a deficient number, since it is larger than the sum of its proper divisors (1357939149).

1401045555 is a wasteful number, since it uses less digits than its factorization.

1401045555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026435.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1401045555 is about 37430.5430764770. The cubic root of 1401045555 is about 1118.9673610725.

Adding to 1401045555 its reverse (5555401041), we get a palindrome (6956446596).

The spelling of 1401045555 in words is "one billion, four hundred one million, forty-five thousand, five hundred fifty-five".