1373011061 has 4 divisors (see below), whose sum is σ = 1420356300. Its totient is φ = 1325665824.

The previous prime is 1373010973. The next prime is 1373011067. The reversal of 1373011061 is 1601103731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 768342961 + 604668100 = 27719^2 + 24590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373011061 - 2¹⁴ = 1372994677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373011067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23672576 + ... + 23672633.

It is an arithmetic number, because the mean of its divisors is an integer number (355089075).

Almost surely, 2^1373011061 is an apocalyptic number.

It is an amenable number.

1373011061 is a deficient number, since it is larger than the sum of its proper divisors (47345239).

1373011061 is an equidigital number, since it uses as much as digits as its factorization.

1373011061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47345238.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1373011061 is about 37054.1638820794. The cubic root of 1373011061 is about 1111.4536216178.

Adding to 1373011061 its reverse (1601103731), we get a palindrome (2974114792).

The spelling of 1373011061 in words is "one billion, three hundred seventy-three million, eleven thousand, sixty-one".