1400163554 has 8 divisors (see below), whose sum is σ = 2223789228. Its totient is φ = 658900480.

The previous prime is 1400163553. The next prime is 1400163559. The reversal of 1400163554 is 4553610041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1135353025 + 264810529 = 33695^2 + 16273^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1400163553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20590607 + ... + 20590674.

Almost surely, 2^1400163554 is an apocalyptic number.

1400163554 is a deficient number, since it is larger than the sum of its proper divisors (823625674).

1400163554 is a wasteful number, since it uses less digits than its factorization.

1400163554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41181300.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1400163554 is about 37418.7593861689. The cubic root of 1400163554 is about 1118.7325037306.

Adding to 1400163554 its reverse (4553610041), we get a palindrome (5953773595).

The spelling of 1400163554 in words is "one billion, four hundred million, one hundred sixty-three thousand, five hundred fifty-four".