145405003346 has 8 divisors (see below), whose sum is σ = 218370604620. Its totient is φ = 72614801808.

The previous prime is 145405003339. The next prime is 145405003351. The reversal of 145405003346 is 643300504541.

It can be written as a sum of positive squares in 2 ways, for example, as 128888898121 + 16516105225 = 359011^2 + 128515^2 .

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

It is a super-2 number, since 2×145405003346² (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, 43847861 + ... + 43851176.

Almost surely, 2^145405003346 is an apocalyptic number.

145405003346 is a deficient number, since it is larger than the sum of its proper divisors (72965601274).

145405003346 is an equidigital number, since it uses as much as digits as its factorization.

145405003346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87699868.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 145405003346 its reverse (643300504541), we get a palindrome (788705507887).

The spelling of 145405003346 in words is "one hundred forty-five billion, four hundred five million, three thousand, three hundred forty-six".