134813890 has 16 divisors (see below), whose sum is σ = 242900280. Its totient is φ = 53873280.

The previous prime is 134813881. The next prime is 134813897. The reversal of 134813890 is 98318431.

It can be written as a sum of positive squares in 4 ways, for example, as 61042969 + 73770921 = 7813^2 + 8589^2 .

It is not an unprimeable number, because it can be changed into a prime (134813897) 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, 5320 + ... + 17260.

Almost surely, 2^134813890 is an apocalyptic number.

134813890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

134813890 is a deficient number, since it is larger than the sum of its proper divisors (108086390).

134813890 is a wasteful number, since it uses less digits than its factorization.

134813890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13077.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 134813890 is about 11610.9383772372. The cubic root of 134813890 is about 512.7569395746.

It can be divided in two parts, 13481 and 3890, that added together give a palindrome (17371).

The spelling of 134813890 in words is "one hundred thirty-four million, eight hundred thirteen thousand, eight hundred ninety".