155745265 has 16 divisors (see below), whose sum is σ = 206183376. Its totient is φ = 112204800.

The previous prime is 155745257. The next prime is 155745287. The reversal of 155745265 is 562547551.

It can be written as a sum of positive squares in 8 ways, for example, as 11553201 + 144192064 = 3399^2 + 12008^2 .

It is not a de Polignac number, because 155745265 - 2³ = 155745257 is a prime.

It is a super-3 number, since 3×155745265³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26556 + ... + 31885.

It is an arithmetic number, because the mean of its divisors is an integer number (12886461).

Almost surely, 2^155745265 is an apocalyptic number.

It is an amenable number.

155745265 is a deficient number, since it is larger than the sum of its proper divisors (50438111).

155745265 is a wasteful number, since it uses less digits than its factorization.

155745265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58500.

The product of its digits is 210000, while the sum is 40.

The square root of 155745265 is about 12479.7942691376. The cubic root of 155745265 is about 538.0280903231.

The spelling of 155745265 in words is "one hundred fifty-five million, seven hundred forty-five thousand, two hundred sixty-five".