145248440734 has 4 divisors (see below), whose sum is σ = 217872661104. Its totient is φ = 72624220366.

The previous prime is 145248440723. The next prime is 145248440749. The reversal of 145248440734 is 437044842541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 437044842541 = 348833 ⋅1252877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36312110182 + ... + 36312110185.

It is an arithmetic number, because the mean of its divisors is an integer number (54468165276).

Almost surely, 2^145248440734 is an apocalyptic number.

145248440734 is a deficient number, since it is larger than the sum of its proper divisors (72624220370).

145248440734 is an equidigital number, since it uses as much as digits as its factorization.

145248440734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72624220369.

The product of its (nonzero) digits is 1720320, while the sum is 46.

The spelling of 145248440734 in words is "one hundred forty-five billion, two hundred forty-eight million, four hundred forty thousand, seven hundred thirty-four".