1381064523 has 8 divisors (see below), whose sum is σ = 1867355136. Its totient is φ = 907741800.

The previous prime is 1381064471. The next prime is 1381064527. The reversal of 1381064523 is 3254601831.

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

It is not a de Polignac number, because 1381064523 - 2¹⁰ = 1381063499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1381064527) 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, 3241723 + ... + 3242148.

It is an arithmetic number, because the mean of its divisors is an integer number (233419392).

Almost surely, 2^1381064523 is an apocalyptic number.

1381064523 is a deficient number, since it is larger than the sum of its proper divisors (486290613).

1381064523 is an equidigital number, since it uses as much as digits as its factorization.

1381064523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483945.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1381064523 is about 37162.6764778857. The cubic root of 1381064523 is about 1113.6224813915.

The spelling of 1381064523 in words is "one billion, three hundred eighty-one million, sixty-four thousand, five hundred twenty-three".