145242263461 has 4 divisors (see below), whose sum is σ = 147703996800. Its totient is φ = 142780530124.

The previous prime is 145242263429. The next prime is 145242263473. The reversal of 145242263461 is 164362242541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145242263461 - 2⁵ = 145242263429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149242263461) 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, 1230866581 + ... + 1230866698.

It is an arithmetic number, because the mean of its divisors is an integer number (36925999200).

Almost surely, 2^145242263461 is an apocalyptic number.

It is an amenable number.

145242263461 is a deficient number, since it is larger than the sum of its proper divisors (2461733339).

145242263461 is an equidigital number, since it uses as much as digits as its factorization.

145242263461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461733338.

The product of its digits is 276480, while the sum is 40.

The spelling of 145242263461 in words is "one hundred forty-five billion, two hundred forty-two million, two hundred sixty-three thousand, four hundred sixty-one".