135491900 has 36 divisors (see below), whose sum is σ = 294673848. Its totient is φ = 54075840.

The previous prime is 135491893. The next prime is 135491933. The reversal of 135491900 is 9194531.

It is a super-2 number, since 2×135491900² = 36716109931220000, which contains 22 as substring.

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, 53462 + ... + 55938.

Almost surely, 2^135491900 is an apocalyptic number.

135491900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135491900 is an abundant number, since it is smaller than the sum of its proper divisors (159181948).

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

135491900 is a wasteful number, since it uses less digits than its factorization.

135491900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 135491900 is about 11640.0987968316. The cubic root of 135491900 is about 513.6150933460.

The spelling of 135491900 in words is "one hundred thirty-five million, four hundred ninety-one thousand, nine hundred".