45840154 has 4 divisors (see below), whose sum is σ = 68760234. Its totient is φ = 22920076.

The previous prime is 45840139. The next prime is 45840167. The reversal of 45840154 is 45104854.

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

It can be written as a sum of positive squares in only one way, i.e., 36929929 + 8910225 = 6077^2 + 2985^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11460037 + ... + 11460040.

Almost surely, 2^45840154 is an apocalyptic number.

45840154 is a deficient number, since it is larger than the sum of its proper divisors (22920080).

45840154 is a wasteful number, since it uses less digits than its factorization.

45840154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22920079.

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

The square root of 45840154 is about 6770.5357247414. The cubic root of 45840154 is about 357.8892794522.

The spelling of 45840154 in words is "forty-five million, eight hundred forty thousand, one hundred fifty-four".