145121250155 has 8 divisors (see below), whose sum is σ = 199023428832. Its totient is φ = 99511714368.

The previous prime is 145121250137. The next prime is 145121250191. The reversal of 145121250155 is 551052121541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145121250155 - 2¹⁶ = 145121184619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2073160682 + ... + 2073160751.

It is an arithmetic number, because the mean of its divisors is an integer number (24877928604).

Almost surely, 2^145121250155 is an apocalyptic number.

145121250155 is a deficient number, since it is larger than the sum of its proper divisors (53902178677).

145121250155 is an equidigital number, since it uses as much as digits as its factorization.

145121250155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146321445.

The product of its (nonzero) digits is 10000, while the sum is 32.

Adding to 145121250155 its reverse (551052121541), we get a palindrome (696173371696).

The spelling of 145121250155 in words is "one hundred forty-five billion, one hundred twenty-one million, two hundred fifty thousand, one hundred fifty-five".