155214535420145 has 16 divisors (see below), whose sum is σ = 186287467524480. Its totient is φ = 124151613298944.

The previous prime is 155214535420039. The next prime is 155214535420169. The reversal of 155214535420145 is 541024535412551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155214535420145 - 2²⁴ = 155214518642929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155214535420145.

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, 870489161 + ... + 870667449.

It is an arithmetic number, because the mean of its divisors is an integer number (11642966720280).

Almost surely, 2^{155214535420145} is an apocalyptic number.

It is an amenable number.

155214535420145 is a deficient number, since it is larger than the sum of its proper divisors (31072932104335).

155214535420145 is a wasteful number, since it uses less digits than its factorization.

155214535420145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205384.

The product of its (nonzero) digits is 2400000, while the sum is 47.

The spelling of 155214535420145 in words is "one hundred fifty-five trillion, two hundred fourteen billion, five hundred thirty-five million, four hundred twenty thousand, one hundred forty-five".