1401154253 has 4 divisors (see below), whose sum is σ = 1404972480. Its totient is φ = 1397336028.

The previous prime is 1401154247. The next prime is 1401154267. The reversal of 1401154253 is 3524511041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1401154253 - 2¹⁸ = 1400892109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401154453) 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 3 ways as a sum of consecutive naturals, for example, 1908563 + ... + 1909296.

It is an arithmetic number, because the mean of its divisors is an integer number (351243120).

Almost surely, 2^1401154253 is an apocalyptic number.

It is an amenable number.

1401154253 is a deficient number, since it is larger than the sum of its proper divisors (3818227).

1401154253 is an equidigital number, since it uses as much as digits as its factorization.

1401154253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818226.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1401154253 is about 37431.9950443468. The cubic root of 1401154253 is about 1118.9962981209.

Adding to 1401154253 its reverse (3524511041), we get a palindrome (4925665294).

The spelling of 1401154253 in words is "one billion, four hundred one million, one hundred fifty-four thousand, two hundred fifty-three".