45540146 has 4 divisors (see below), whose sum is σ = 68310222. Its totient is φ = 22770072.

The previous prime is 45540137. The next prime is 45540149. The reversal of 45540146 is 64104554.

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., 45414121 + 126025 = 6739^2 + 355^2 .

It is a super-3 number, since 3×45540146³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45540149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11385035 + ... + 11385038.

Almost surely, 2^45540146 is an apocalyptic number.

45540146 is a deficient number, since it is larger than the sum of its proper divisors (22770076).

45540146 is a wasteful number, since it uses less digits than its factorization.

45540146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22770075.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 45540146 is about 6748.3439449987. The cubic root of 45540146 is about 357.1068160049.

The spelling of 45540146 in words is "forty-five million, five hundred forty thousand, one hundred forty-six".