155734538 has 4 divisors (see below), whose sum is σ = 233601810. Its totient is φ = 77867268.

The previous prime is 155734531. The next prime is 155734577. The reversal of 155734538 is 835437551.

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

It can be written as a sum of positive squares in only one way, i.e., 149499529 + 6235009 = 12227^2 + 2497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155734495 and 155734504.

It is not an unprimeable number, because it can be changed into a prime (155734531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38933633 + ... + 38933636.

Almost surely, 2^155734538 is an apocalyptic number.

155734538 is a deficient number, since it is larger than the sum of its proper divisors (77867272).

155734538 is an equidigital number, since it uses as much as digits as its factorization.

155734538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77867271.

The product of its digits is 252000, while the sum is 41.

The square root of 155734538 is about 12479.3644870242. The cubic root of 155734538 is about 538.0157377596.

The spelling of 155734538 in words is "one hundred fifty-five million, seven hundred thirty-four thousand, five hundred thirty-eight".