145411136121 has 4 divisors (see below), whose sum is σ = 193881514832. Its totient is φ = 96940757412.

The previous prime is 145411136111. The next prime is 145411136197. The reversal of 145411136121 is 121631114541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121631114541 = 3 ⋅40543704847.

It is not a de Polignac number, because 145411136121 - 2⁵ = 145411136089 is a prime.

It is a super-2 number, since 2×145411136121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145411136111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24235189351 + ... + 24235189356.

It is an arithmetic number, because the mean of its divisors is an integer number (48470378708).

Almost surely, 2^145411136121 is an apocalyptic number.

It is an amenable number.

145411136121 is a deficient number, since it is larger than the sum of its proper divisors (48470378711).

145411136121 is an equidigital number, since it uses as much as digits as its factorization.

145411136121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48470378710.

The product of its digits is 2880, while the sum is 30.

The spelling of 145411136121 in words is "one hundred forty-five billion, four hundred eleven million, one hundred thirty-six thousand, one hundred twenty-one".