145345454 has 8 divisors (see below), whose sum is σ = 218438208. Its totient is φ = 72532720.

The previous prime is 145345439. The next prime is 145345457. The reversal of 145345454 is 454543541.

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

It is a super-2 number, since 2×145345454² = 42250601996932232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145345457) 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, 68702 + ... + 70785.

It is an arithmetic number, because the mean of its divisors is an integer number (27304776).

Almost surely, 2^145345454 is an apocalyptic number.

145345454 is a deficient number, since it is larger than the sum of its proper divisors (73092754).

145345454 is a wasteful number, since it uses less digits than its factorization.

145345454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140010.

The product of its digits is 96000, while the sum is 35.

The square root of 145345454 is about 12055.9302420012. The cubic root of 145345454 is about 525.7756685305.

Adding to 145345454 its reverse (454543541), we get a palindrome (599888995).

The spelling of 145345454 in words is "one hundred forty-five million, three hundred forty-five thousand, four hundred fifty-four".