145399795042 has 8 divisors (see below), whose sum is σ = 218421850716. Its totient is φ = 72592511472.

The previous prime is 145399794971. The next prime is 145399795061. The reversal of 145399795042 is 240597993541.

It can be written as a sum of positive squares in 2 ways, for example, as 126208957081 + 19190837961 = 355259^2 + 138531^2 .

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

It is a super-2 number, since 2×145399795042² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53691333 + ... + 53694040.

Almost surely, 2^145399795042 is an apocalyptic number.

145399795042 is a deficient number, since it is larger than the sum of its proper divisors (73022055674).

145399795042 is a wasteful number, since it uses less digits than its factorization.

145399795042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107386052.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 145399795042 in words is "one hundred forty-five billion, three hundred ninety-nine million, seven hundred ninety-five thousand, forty-two".