1385077534 has 4 divisors (see below), whose sum is σ = 2077616304. Its totient is φ = 692538766.

The previous prime is 1385077531. The next prime is 1385077583. The reversal of 1385077534 is 4357705831.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385077531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346269382 + ... + 346269385.

It is an arithmetic number, because the mean of its divisors is an integer number (519404076).

Almost surely, 2^1385077534 is an apocalyptic number.

1385077534 is a deficient number, since it is larger than the sum of its proper divisors (692538770).

1385077534 is an equidigital number, since it uses as much as digits as its factorization.

1385077534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692538769.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 1385077534 is about 37216.6298044302. The cubic root of 1385077534 is about 1114.7000698767.

The spelling of 1385077534 in words is "one billion, three hundred eighty-five million, seventy-seven thousand, five hundred thirty-four".