155743896 has 128 divisors (see below), whose sum is σ = 492687360. Its totient is φ = 39849600.

The previous prime is 155743831. The next prime is 155743901. The reversal of 155743896 is 698347551.

It is a super-3 number, since 3×155743896³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130615 + ... + 131801.

It is an arithmetic number, because the mean of its divisors is an integer number (3849120).

Almost surely, 2^155743896 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 155743896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246343680).

155743896 is an abundant number, since it is smaller than the sum of its proper divisors (336943464).

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

155743896 is a wasteful number, since it uses less digits than its factorization.

155743896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1281 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 155743896 is about 12479.7394203565. The cubic root of 155743896 is about 538.0265138972.

The spelling of 155743896 in words is "one hundred fifty-five million, seven hundred forty-three thousand, eight hundred ninety-six".