1401154203 has 8 divisors (see below), whose sum is σ = 1874175568. Its totient is φ = 931117824.

The previous prime is 1401154187. The next prime is 1401154241. The reversal of 1401154203 is 3024511041.

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

It is not a de Polignac number, because 1401154203 - 2⁴ = 1401154187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401154203.

It is not an unprimeable number, because it can be changed into a prime (1401154903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745150 + ... + 747027.

It is an arithmetic number, because the mean of its divisors is an integer number (234271946).

Almost surely, 2^1401154203 is an apocalyptic number.

1401154203 is a deficient number, since it is larger than the sum of its proper divisors (473021365).

1401154203 is a wasteful number, since it uses less digits than its factorization.

1401154203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492493.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1401154203 is about 37431.9943764689. The cubic root of 1401154203 is about 1118.9962848105.

Adding to 1401154203 its reverse (3024511041), we get a palindrome (4425665244).

The spelling of 1401154203 in words is "one billion, four hundred one million, one hundred fifty-four thousand, two hundred three".