1381420507 has 4 divisors (see below), whose sum is σ = 1389138120. Its totient is φ = 1373702896.

The previous prime is 1381420501. The next prime is 1381420519. The reversal of 1381420507 is 7050241831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7050241831 = 63361 ⋅111271.

It is a cyclic number.

It is not a de Polignac number, because 1381420507 - 2⁷ = 1381420379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381420501) 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, 3858538 + ... + 3858895.

It is an arithmetic number, because the mean of its divisors is an integer number (347284530).

Almost surely, 2^1381420507 is an apocalyptic number.

1381420507 is a deficient number, since it is larger than the sum of its proper divisors (7717613).

1381420507 is an equidigital number, since it uses as much as digits as its factorization.

1381420507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717612.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1381420507 is about 37167.4657059101. The cubic root of 1381420507 is about 1113.7181558326.

The spelling of 1381420507 in words is "one billion, three hundred eighty-one million, four hundred twenty thousand, five hundred seven".