155742574273 has 24 divisors (see below), whose sum is σ = 184415094248. Its totient is φ = 130651488000.

The previous prime is 155742574243. The next prime is 155742574307. The reversal of 155742574273 is 372475247551.

It can be written as a sum of positive squares in 4 ways, for example, as 39727809 + 155702846464 = 6303^2 + 394592^2 .

It is not a de Polignac number, because 155742574273 - 2²⁹ = 155205703361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155742574273.

It is not an unprimeable number, because it can be changed into a prime (155742574223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5556013 + ... + 5583973.

Almost surely, 2^155742574273 is an apocalyptic number.

155742574273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155742574273 is a deficient number, since it is larger than the sum of its proper divisors (28672519975).

155742574273 is a wasteful number, since it uses less digits than its factorization.

155742574273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31537 (or 31526 counting only the distinct ones).

The product of its digits is 8232000, while the sum is 52.

The spelling of 155742574273 in words is "one hundred fifty-five billion, seven hundred forty-two million, five hundred seventy-four thousand, two hundred seventy-three".