1403135155 has 4 divisors (see below), whose sum is σ = 1683762192. Its totient is φ = 1122508120.

The previous prime is 1403135141. The next prime is 1403135177. The reversal of 1403135155 is 5515313041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1403135155 - 2⁹ = 1403134643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140313511 + ... + 140313520.

It is an arithmetic number, because the mean of its divisors is an integer number (420940548).

Almost surely, 2^1403135155 is an apocalyptic number.

1403135155 is a deficient number, since it is larger than the sum of its proper divisors (280627037).

1403135155 is an equidigital number, since it uses as much as digits as its factorization.

1403135155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280627036.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1403135155 is about 37458.4457098796. The cubic root of 1403135155 is about 1119.5233821842.

Adding to 1403135155 its reverse (5515313041), we get a palindrome (6918448196).

The spelling of 1403135155 in words is "one billion, four hundred three million, one hundred thirty-five thousand, one hundred fifty-five".