145166554 has 8 divisors (see below), whose sum is σ = 234499860. Its totient is φ = 66999936.

The previous prime is 145166543. The next prime is 145166563. The reversal of 145166554 is 455661541.

It can be written as a sum of positive squares in 2 ways, for example, as 144120025 + 1046529 = 12005^2 + 1023^2 .

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

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, 2791639 + ... + 2791690.

Almost surely, 2^145166554 is an apocalyptic number.

145166554 is a deficient number, since it is larger than the sum of its proper divisors (89333306).

145166554 is a wasteful number, since it uses less digits than its factorization.

145166554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583344.

The product of its digits is 72000, while the sum is 37.

The square root of 145166554 is about 12048.5083724086. The cubic root of 145166554 is about 525.5598611029.

The spelling of 145166554 in words is "one hundred forty-five million, one hundred sixty-six thousand, five hundred fifty-four".