155144281197 has 16 divisors (see below), whose sum is σ = 212622877440. Its totient is φ = 100552156992.

The previous prime is 155144281157. The next prime is 155144281199. The reversal of 155144281197 is 791182441551.

It is not a de Polignac number, because 155144281197 - 2¹⁴ = 155144264813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155144281199) 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, 432213 + ... + 705050.

It is an arithmetic number, because the mean of its divisors is an integer number (13288929840).

Almost surely, 2^155144281197 is an apocalyptic number.

It is an amenable number.

155144281197 is a deficient number, since it is larger than the sum of its proper divisors (57478596243).

155144281197 is a wasteful number, since it uses less digits than its factorization.

155144281197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138532.

The product of its digits is 403200, while the sum is 48.

The spelling of 155144281197 in words is "one hundred fifty-five billion, one hundred forty-four million, two hundred eighty-one thousand, one hundred ninety-seven".