1374697081 has 4 divisors (see below), whose sum is σ = 1374912000. Its totient is φ = 1374482164.

The previous prime is 1374697039. The next prime is 1374697087. The reversal of 1374697081 is 1807964731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1807964731 = 347 ⋅5210273.

It is a cyclic number.

It is not a de Polignac number, because 1374697081 - 2²⁹ = 837826169 is a prime.

It is a super-2 number, since 2×1374697081² = 3779584129019841122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1374697087) 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, 97561 + ... + 110758.

It is an arithmetic number, because the mean of its divisors is an integer number (343728000).

Almost surely, 2^1374697081 is an apocalyptic number.

It is an amenable number.

1374697081 is a deficient number, since it is larger than the sum of its proper divisors (214919).

1374697081 is an equidigital number, since it uses as much as digits as its factorization.

1374697081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214918.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 1374697081 is about 37076.9076515289. The cubic root of 1374697081 is about 1111.9083803994.

The spelling of 1374697081 in words is "one billion, three hundred seventy-four million, six hundred ninety-seven thousand, eighty-one".