155055734 has 4 divisors (see below), whose sum is σ = 232583604. Its totient is φ = 77527866.

The previous prime is 155055701. The next prime is 155055737. The reversal of 155055734 is 437550551.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155055694 and 155055703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155055737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38763932 + ... + 38763935.

It is an arithmetic number, because the mean of its divisors is an integer number (58145901).

Almost surely, 2^155055734 is an apocalyptic number.

155055734 is a deficient number, since it is larger than the sum of its proper divisors (77527870).

155055734 is an equidigital number, since it uses as much as digits as its factorization.

155055734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77527869.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 155055734 is about 12452.1377281172. The cubic root of 155055734 is about 537.2329117601.

The spelling of 155055734 in words is "one hundred fifty-five million, fifty-five thousand, seven hundred thirty-four".