1374481477 has 4 divisors (see below), whose sum is σ = 1421877420. Its totient is φ = 1327085536.

The previous prime is 1374481469. The next prime is 1374481487. The reversal of 1374481477 is 7741844731.

It is a Cunningham number, because it is equal to 37074²+1.

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 720707716 + 653773761 = 26846^2 + 25569^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374481477 - 2³ = 1374481469 is a prime.

It is a super-2 number, since 2×1374481477² = 3778398661232203058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374481457) 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, 23697928 + ... + 23697985.

It is an arithmetic number, because the mean of its divisors is an integer number (355469355).

Almost surely, 2^1374481477 is an apocalyptic number.

It is an amenable number.

1374481477 is a deficient number, since it is larger than the sum of its proper divisors (47395943).

1374481477 is an equidigital number, since it uses as much as digits as its factorization.

1374481477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47395942.

The product of its digits is 526848, while the sum is 46.

The square root of 1374481477 is about 37074.0000134865. Note that the first 4 decimals coincide. The cubic root of 1374481477 is about 1111.8502477311.

The spelling of 1374481477 in words is "one billion, three hundred seventy-four million, four hundred eighty-one thousand, four hundred seventy-seven".