145121554115 has 8 divisors (see below), whose sum is σ = 176745057360. Its totient is φ = 114364448352.

The previous prime is 145121554103. The next prime is 145121554117. The reversal of 145121554115 is 511455121541.

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 145121554115 - 2⁴ = 145121554099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145121554117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216599000 + ... + 216599669.

It is an arithmetic number, because the mean of its divisors is an integer number (22093132170).

Almost surely, 2^145121554115 is an apocalyptic number.

145121554115 is a deficient number, since it is larger than the sum of its proper divisors (31623503245).

145121554115 is an equidigital number, since it uses as much as digits as its factorization.

145121554115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433198741.

The product of its digits is 20000, while the sum is 35.

Adding to 145121554115 its reverse (511455121541), we get a palindrome (656576675656).

The spelling of 145121554115 in words is "one hundred forty-five billion, one hundred twenty-one million, five hundred fifty-four thousand, one hundred fifteen".