1354678477 has 4 divisors (see below), whose sum is σ = 1354990140. Its totient is φ = 1354366816.

The previous prime is 1354678471. The next prime is 1354678483. The reversal of 1354678477 is 7748764531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7748764531 = 379 ⋅20445289.

It is an interprime number because it is at equal distance from previous prime (1354678471) and next prime (1354678483).

It can be written as a sum of positive squares in 2 ways, for example, as 772228521 + 582449956 = 27789^2 + 24134^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354678477 - 2³ = 1354678469 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 (1354678471) 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, 149218 + ... + 158035.

It is an arithmetic number, because the mean of its divisors is an integer number (338747535).

Almost surely, 2^1354678477 is an apocalyptic number.

It is an amenable number.

1354678477 is a deficient number, since it is larger than the sum of its proper divisors (311663).

1354678477 is an equidigital number, since it uses as much as digits as its factorization.

1354678477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311662.

The product of its digits is 3951360, while the sum is 52.

The square root of 1354678477 is about 36805.9570857762. The cubic root of 1354678477 is about 1106.4846928959.

The spelling of 1354678477 in words is "one billion, three hundred fifty-four million, six hundred seventy-eight thousand, four hundred seventy-seven".