1361031497 has 6 divisors (see below), whose sum is σ = 1583240778. Its totient is φ = 1166598384.

The previous prime is 1361031493. The next prime is 1361031557. The reversal of 1361031497 is 7941301631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1115827216 + 245204281 = 33404^2 + 15659^2 .

It is not a de Polignac number, because 1361031497 - 2² = 1361031493 is a prime.

It is a super-2 number, since 2×1361031497² = 3704813471652122018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1361031493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13888028 + ... + 13888125.

It is an arithmetic number, because the mean of its divisors is an integer number (263873463).

Almost surely, 2^1361031497 is an apocalyptic number.

It is an amenable number.

1361031497 is a deficient number, since it is larger than the sum of its proper divisors (222209281).

1361031497 is an equidigital number, since it uses as much as digits as its factorization.

1361031497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27776167 (or 27776160 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 1361031497 is about 36892.1603731741. The cubic root of 1361031497 is about 1108.2116855099.

The spelling of 1361031497 in words is "one billion, three hundred sixty-one million, thirty-one thousand, four hundred ninety-seven".