155136745 has 16 divisors (see below), whose sum is σ = 192622608. Its totient is φ = 119854080.

The previous prime is 155136719. The next prime is 155136749. The reversal of 155136745 is 547631551.

It can be written as a sum of positive squares in 8 ways, for example, as 59536 + 155077209 = 244^2 + 12453^2 .

It is not a de Polignac number, because 155136745 - 2¹¹ = 155134697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

155136745 is a Rhonda number in base 10.

Its product of digits (63000) is a multiple of the sum of its prime divisors (6300).

It is not an unprimeable number, because it can be changed into a prime (155136749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22285 + ... + 28405.

It is an arithmetic number, because the mean of its divisors is an integer number (12038913).

Almost surely, 2^155136745 is an apocalyptic number.

It is an amenable number.

155136745 is a deficient number, since it is larger than the sum of its proper divisors (37485863).

155136745 is a wasteful number, since it uses less digits than its factorization.

155136745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6300.

The product of its digits is 63000, while the sum is 37.

The square root of 155136745 is about 12455.3901986249. The cubic root of 155136745 is about 537.3264570442.

It can be divided in two parts, 155 and 136745, that added together give a square (136900 = 370²).

The spelling of 155136745 in words is "one hundred fifty-five million, one hundred thirty-six thousand, seven hundred forty-five".