1383156507 has 4 divisors (see below), whose sum is σ = 1844208680. Its totient is φ = 922104336.

The previous prime is 1383156493. The next prime is 1383156539. The reversal of 1383156507 is 7056513831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1383156507 - 2⁴ = 1383156491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383156587) 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, 230526082 + ... + 230526087.

It is an arithmetic number, because the mean of its divisors is an integer number (461052170).

Almost surely, 2^1383156507 is an apocalyptic number.

1383156507 is a deficient number, since it is larger than the sum of its proper divisors (461052173).

1383156507 is an equidigital number, since it uses as much as digits as its factorization.

1383156507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461052172.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1383156507 is about 37190.8121314929. The cubic root of 1383156507 is about 1114.1844887078.

The spelling of 1383156507 in words is "one billion, three hundred eighty-three million, one hundred fifty-six thousand, five hundred seven".