145446196739 has 8 divisors (see below), whose sum is σ = 148197332592. Its totient is φ = 142695315360.

The previous prime is 145446196729. The next prime is 145446196751. The reversal of 145446196739 is 937691644541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145446196739 - 2¹² = 145446192643 is a prime.

It is a super-2 number, since 2×145446196739² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145446196729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1409852 + ... + 1509494.

It is an arithmetic number, because the mean of its divisors is an integer number (18524666574).

Almost surely, 2^145446196739 is an apocalyptic number.

145446196739 is a deficient number, since it is larger than the sum of its proper divisors (2751135853).

145446196739 is an equidigital number, since it uses as much as digits as its factorization.

145446196739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127237.

The product of its digits is 19595520, while the sum is 59.

The spelling of 145446196739 in words is "one hundred forty-five billion, four hundred forty-six million, one hundred ninety-six thousand, seven hundred thirty-nine".