1385142148 has 12 divisors (see below), whose sum is σ = 2610460300. Its totient is φ = 639296352.

The previous prime is 1385142113. The next prime is 1385142149. The reversal of 1385142148 is 8412415831.

It can be written as a sum of positive squares in 2 ways, for example, as 293368384 + 1091773764 = 17128^2 + 33042^2 .

It is not an unprimeable number, because it can be changed into a prime (1385142149) 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, 13318623 + ... + 13318726.

Almost surely, 2^1385142148 is an apocalyptic number.

It is an amenable number.

1385142148 is a deficient number, since it is larger than the sum of its proper divisors (1225318152).

1385142148 is a wasteful number, since it uses less digits than its factorization.

1385142148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26637366 (or 26637364 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 1385142148 is about 37217.4978739840. The cubic root of 1385142148 is about 1114.7174032289.

Adding to 1385142148 its reverse (8412415831), we get a palindrome (9797557979).

The spelling of 1385142148 in words is "one billion, three hundred eighty-five million, one hundred forty-two thousand, one hundred forty-eight".