745440142441 has 4 divisors (see below), whose sum is σ = 745614681984. Its totient is φ = 745265602900.

The previous prime is 745440142429. The next prime is 745440142463. The reversal of 745440142441 is 144241044547.

It is a happy number.

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 745440142441 - 2²⁵ = 745406588009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745440142394 and 745440142403.

It is not an unprimeable number, because it can be changed into a prime (745440148441) 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, 87263365 + ... + 87271906.

It is an arithmetic number, because the mean of its divisors is an integer number (186403670496).

Almost surely, 2^745440142441 is an apocalyptic number.

It is an amenable number.

745440142441 is a deficient number, since it is larger than the sum of its proper divisors (174539543).

745440142441 is a wasteful number, since it uses less digits than its factorization.

745440142441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174539542.

The product of its (nonzero) digits is 286720, while the sum is 40.

Adding to 745440142441 its reverse (144241044547), we get a palindrome (889681186988).

The spelling of 745440142441 in words is "seven hundred forty-five billion, four hundred forty million, one hundred forty-two thousand, four hundred forty-one".