145565454251 has 16 divisors (see below), whose sum is σ = 169322572800. Its totient is φ = 122552409408.

The previous prime is 145565454241. The next prime is 145565454257. The reversal of 145565454251 is 152454565541.

It is a cyclic number.

It is not a de Polignac number, because 145565454251 - 2¹⁴ = 145565437867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145565454196 and 145565454205.

It is not an unprimeable number, because it can be changed into a prime (145565454257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344990 + ... + 640428.

It is an arithmetic number, because the mean of its divisors is an integer number (10582660800).

Almost surely, 2^145565454251 is an apocalyptic number.

145565454251 is a deficient number, since it is larger than the sum of its proper divisors (23757118549).

145565454251 is a wasteful number, since it uses less digits than its factorization.

145565454251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296698.

The product of its digits is 2400000, while the sum is 47.

The spelling of 145565454251 in words is "one hundred forty-five billion, five hundred sixty-five million, four hundred fifty-four thousand, two hundred fifty-one".