1381264707 has 8 divisors (see below), whose sum is σ = 1842202384. Its totient is φ = 920585088.

The previous prime is 1381264681. The next prime is 1381264733. The reversal of 1381264707 is 7074621831.

It is an interprime number because it is at equal distance from previous prime (1381264681) and next prime (1381264733).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1381264707 - 2¹⁸ = 1381002563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381269707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51658 + ... + 73695.

It is an arithmetic number, because the mean of its divisors is an integer number (230275298).

Almost surely, 2^1381264707 is an apocalyptic number.

1381264707 is a deficient number, since it is larger than the sum of its proper divisors (460937677).

1381264707 is a wasteful number, since it uses less digits than its factorization.

1381264707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129029.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 1381264707 is about 37165.3697277452. The cubic root of 1381264707 is about 1113.6762849681.

It can be divided in two parts, 138 and 1264707, that added together give a triangular number (1264845 = T₁₅₉₀).

The spelling of 1381264707 in words is "one billion, three hundred eighty-one million, two hundred sixty-four thousand, seven hundred seven".