145400458 has 32 divisors (see below), whose sum is σ = 256924800. Its totient is φ = 60419520.

The previous prime is 145400449. The next prime is 145400459. The reversal of 145400458 is 854004541.

It is a super-2 number, since 2×145400458² = 42282586373219528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145400459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88888 + ... + 90508.

It is an arithmetic number, because the mean of its divisors is an integer number (8028900).

Almost surely, 2^145400458 is an apocalyptic number.

145400458 is a deficient number, since it is larger than the sum of its proper divisors (111524342).

145400458 is a wasteful number, since it uses less digits than its factorization.

145400458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 145400458 is about 12058.2112272094. The cubic root of 145400458 is about 525.8419843704.

Adding to 145400458 its reverse (854004541), we get a palindrome (999404999).

The spelling of 145400458 in words is "one hundred forty-five million, four hundred thousand, four hundred fifty-eight".