135601400 has 48 divisors (see below), whose sum is σ = 343940040. Its totient is φ = 49308800.

The previous prime is 135601397. The next prime is 135601429. The reversal of 135601400 is 4106531.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28619 + ... + 33018.

Almost surely, 2^135601400 is an apocalyptic number.

135601400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135601400 is an abundant number, since it is smaller than the sum of its proper divisors (208338640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135601400 is a wasteful number, since it uses less digits than its factorization.

135601400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61664 (or 61655 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 135601400 is about 11644.8014152239. The cubic root of 135601400 is about 513.7534182418.

Adding to 135601400 its reverse (4106531), we get a palindrome (139707931).

The spelling of 135601400 in words is "one hundred thirty-five million, six hundred one thousand, four hundred".