145554404 has 6 divisors (see below), whose sum is σ = 254720214. Its totient is φ = 72777200.

The previous prime is 145554397. The next prime is 145554407. The reversal of 145554404 is 404455541.

It can be written as a sum of positive squares in only one way, i.e., 104080804 + 41473600 = 10202^2 + 6440^2 .

It is not an unprimeable number, because it can be changed into a prime (145554407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18194297 + ... + 18194304.

It is an arithmetic number, because the mean of its divisors is an integer number (42453369).

Almost surely, 2^145554404 is an apocalyptic number.

It is an amenable number.

145554404 is a deficient number, since it is larger than the sum of its proper divisors (109165810).

145554404 is a wasteful number, since it uses less digits than its factorization.

145554404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36388605 (or 36388603 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 145554404 is about 12064.5929894050. The cubic root of 145554404 is about 526.0275012488.

The spelling of 145554404 in words is "one hundred forty-five million, five hundred fifty-four thousand, four hundred four".