145322113551 has 4 divisors (see below), whose sum is σ = 193762818072. Its totient is φ = 96881409032.

The previous prime is 145322113537. The next prime is 145322113571. The reversal of 145322113551 is 155311223541.

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

It is a cyclic number.

It is not a de Polignac number, because 145322113551 - 2¹¹ = 145322111503 is a prime.

It is a super-2 number, since 2×145322113551² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145322113511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24220352256 + ... + 24220352261.

It is an arithmetic number, because the mean of its divisors is an integer number (48440704518).

Almost surely, 2^145322113551 is an apocalyptic number.

145322113551 is a deficient number, since it is larger than the sum of its proper divisors (48440704521).

145322113551 is an equidigital number, since it uses as much as digits as its factorization.

145322113551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48440704520.

The product of its digits is 18000, while the sum is 33.

The spelling of 145322113551 in words is "one hundred forty-five billion, three hundred twenty-two million, one hundred thirteen thousand, five hundred fifty-one".