1603160761 has 2 divisors, whose sum is σ = 1603160762. Its totient is φ = 1603160760.

The previous prime is 1603160729. The next prime is 1603160813. The reversal of 1603160761 is 1670613061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1281640000 + 321520761 = 35800^2 + 17931^2 .

It is a cyclic number.

It is not a de Polignac number, because 1603160761 - 2⁵ = 1603160729 is a prime.

It is a super-2 number, since 2×1603160761² = 5140248851220198242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1603140761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801580380 + 801580381.

It is an arithmetic number, because the mean of its divisors is an integer number (801580381).

Almost surely, 2^1603160761 is an apocalyptic number.

It is an amenable number.

1603160761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603160761 is an equidigital number, since it uses as much as digits as its factorization.

1603160761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1603160761 is about 40039.4900192298. The cubic root of 1603160761 is about 1170.3767654551.

The spelling of 1603160761 in words is "one billion, six hundred three million, one hundred sixty thousand, seven hundred sixty-one".