145232111546 has 4 divisors (see below), whose sum is σ = 217848167322. Its totient is φ = 72616055772.

The previous prime is 145232111533. The next prime is 145232111573. The reversal of 145232111546 is 645111232541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645111232541 = 859 ⋅751002599.

It can be written as a sum of positive squares in only one way, i.e., 121738885921 + 23493225625 = 348911^2 + 153275^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36308027885 + ... + 36308027888.

Almost surely, 2^145232111546 is an apocalyptic number.

145232111546 is a deficient number, since it is larger than the sum of its proper divisors (72616055776).

145232111546 is an equidigital number, since it uses as much as digits as its factorization.

145232111546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72616055775.

The product of its digits is 28800, while the sum is 35.

The spelling of 145232111546 in words is "one hundred forty-five billion, two hundred thirty-two million, one hundred eleven thousand, five hundred forty-six".