135723772 has 6 divisors (see below), whose sum is σ = 237516608. Its totient is φ = 67861884.

The previous prime is 135723769. The next prime is 135723773. The reversal of 135723772 is 277327531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135723773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16965468 + ... + 16965475.

Almost surely, 2^135723772 is an apocalyptic number.

It is an amenable number.

135723772 is a deficient number, since it is larger than the sum of its proper divisors (101792836).

135723772 is a wasteful number, since it uses less digits than its factorization.

135723772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33930947 (or 33930945 counting only the distinct ones).

The product of its digits is 61740, while the sum is 37.

The square root of 135723772 is about 11650.0545921468. The cubic root of 135723772 is about 513.9079154937.

The spelling of 135723772 in words is "one hundred thirty-five million, seven hundred twenty-three thousand, seven hundred seventy-two".