145446762551 has 4 divisors (see below), whose sum is σ = 145447525512. Its totient is φ = 145445999592.

The previous prime is 145446762523. The next prime is 145446762557. The reversal of 145446762551 is 155267644541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 155267644541 = 39227 ⋅3958183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145446762551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145446762551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145446762557) 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, 177305 + ... + 567741.

It is an arithmetic number, because the mean of its divisors is an integer number (36361881378).

Almost surely, 2^145446762551 is an apocalyptic number.

145446762551 is a deficient number, since it is larger than the sum of its proper divisors (762961).

145446762551 is an equidigital number, since it uses as much as digits as its factorization.

145446762551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762960.

The product of its digits is 4032000, while the sum is 50.

The spelling of 145446762551 in words is "one hundred forty-five billion, four hundred forty-six million, seven hundred sixty-two thousand, five hundred fifty-one".