145412552555 has 4 divisors (see below), whose sum is σ = 174495063072. Its totient is φ = 116330042040.

The previous prime is 145412552489. The next prime is 145412552563. The reversal of 145412552555 is 555255214541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-145412552555 is a prime.

It is a super-2 number, since 2×145412552555² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14541255251 + ... + 14541255260.

It is an arithmetic number, because the mean of its divisors is an integer number (43623765768).

Almost surely, 2^145412552555 is an apocalyptic number.

145412552555 is a deficient number, since it is larger than the sum of its proper divisors (29082510517).

145412552555 is an equidigital number, since it uses as much as digits as its factorization.

145412552555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29082510516.

The product of its digits is 1000000, while the sum is 44.

The spelling of 145412552555 in words is "one hundred forty-five billion, four hundred twelve million, five hundred fifty-two thousand, five hundred fifty-five".