1403520131 has 8 divisors (see below), whose sum is σ = 1514901360. Its totient is φ = 1292627232.

The previous prime is 1403520089. The next prime is 1403520137. The reversal of 1403520131 is 1310253041.

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

It is not a de Polignac number, because 1403520131 - 2⁶ = 1403520067 is a prime.

It is a super-2 number, since 2×1403520131² = 3939737516244514322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1403520137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116096 + ... + 127613.

It is an arithmetic number, because the mean of its divisors is an integer number (189362670).

Almost surely, 2^1403520131 is an apocalyptic number.

1403520131 is a deficient number, since it is larger than the sum of its proper divisors (111381229).

1403520131 is a wasteful number, since it uses less digits than its factorization.

1403520131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244165.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1403520131 is about 37463.5840650624. The cubic root of 1403520131 is about 1119.6257601153.

Adding to 1403520131 its reverse (1310253041), we get a palindrome (2713773172).

The spelling of 1403520131 in words is "one billion, four hundred three million, five hundred twenty thousand, one hundred thirty-one".