145345054 has 4 divisors (see below), whose sum is σ = 218017584. Its totient is φ = 72672526.

The previous prime is 145345049. The next prime is 145345061. The reversal of 145345054 is 450543541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×145345054² = 42250369444525832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36336262 + ... + 36336265.

It is an arithmetic number, because the mean of its divisors is an integer number (54504396).

Almost surely, 2^145345054 is an apocalyptic number.

145345054 is a deficient number, since it is larger than the sum of its proper divisors (72672530).

145345054 is an equidigital number, since it uses as much as digits as its factorization.

145345054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72672529.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 145345054 is about 12055.9136526437. The cubic root of 145345054 is about 525.7751862073.

Adding to 145345054 its reverse (450543541), we get a palindrome (595888595).

The spelling of 145345054 in words is "one hundred forty-five million, three hundred forty-five thousand, fifty-four".