1603240131 has 16 divisors (see below), whose sum is σ = 2265300000. Its totient is φ = 1005109248.

The previous prime is 1603240123. The next prime is 1603240169. The reversal of 1603240131 is 1310423061.

It is not a de Polignac number, because 1603240131 - 2³ = 1603240123 is a prime.

It is a super-2 number, since 2×1603240131² = 5140757835297794322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1603240098 and 1603240107.

It is not an unprimeable number, because it can be changed into a prime (1603240631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51115 + ... + 76283.

It is an arithmetic number, because the mean of its divisors is an integer number (141581250).

Almost surely, 2^1603240131 is an apocalyptic number.

1603240131 is a deficient number, since it is larger than the sum of its proper divisors (662059869).

1603240131 is a wasteful number, since it uses less digits than its factorization.

1603240131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26438.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1603240131 is about 40040.4811534527. The cubic root of 1603240131 is about 1170.3960796484.

Adding to 1603240131 its reverse (1310423061), we get a palindrome (2913663192).

The spelling of 1603240131 in words is "one billion, six hundred three million, two hundred forty thousand, one hundred thirty-one".