155131341241000 has 64 divisors (see below), whose sum is σ = 363012186635280. Its totient is φ = 62051707756800.

The previous prime is 155131341240991. The next prime is 155131341241001. The reversal of 155131341241000 is 142143131551.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 53982804964 + 155077358436036 = 232342^2 + 12453006^2 .

It is not an unprimeable number, because it can be changed into a prime (155131341241001) 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, 76799974 + ... + 78794026.

Almost surely, 2^{155131341241000} is an apocalyptic number.

155131341241000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155131341241000 is an abundant number, since it is smaller than the sum of its proper divisors (207880845394280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155131341241000 is a wasteful number, since it uses less digits than its factorization.

155131341241000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071871 (or 2071857 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 155131341241000 its reverse (142143131551), we get a palindrome (155273484372551).

The spelling of 155131341241000 in words is "one hundred fifty-five trillion, one hundred thirty-one billion, three hundred forty-one million, two hundred forty-one thousand".