135723276 has 144 divisors (see below), whose sum is σ = 400667904. Its totient is φ = 39859776.

The previous prime is 135723241. The next prime is 135723293. The reversal of 135723276 is 672327531.

135723276 is a `hidden beast` number, since 1 + 357 + 232 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 135723276.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290395 + ... + 290861.

It is an arithmetic number, because the mean of its divisors is an integer number (2782416).

Almost surely, 2^135723276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135723276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200333952).

135723276 is an abundant number, since it is smaller than the sum of its proper divisors (264944628).

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

135723276 is a wasteful number, since it uses less digits than its factorization.

135723276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 508 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 135723276 is about 11650.0333046734. The cubic root of 135723276 is about 513.9072894706.

The spelling of 135723276 in words is "one hundred thirty-five million, seven hundred twenty-three thousand, two hundred seventy-six".