45090501 has 8 divisors (see below), whose sum is σ = 60481344. Its totient is φ = 29880000.

The previous prime is 45090491. The next prime is 45090517. The reversal of 45090501 is 10509054.

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

It is not a de Polignac number, because 45090501 - 2⁵ = 45090469 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45090571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44500 + ... + 45501.

It is an arithmetic number, because the mean of its divisors is an integer number (7560168).

Almost surely, 2^45090501 is an apocalyptic number.

It is an amenable number.

45090501 is a deficient number, since it is larger than the sum of its proper divisors (15390843).

45090501 is a wasteful number, since it uses less digits than its factorization.

45090501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90171.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 45090501 is about 6714.9460906250. The cubic root of 45090501 is about 355.9276170012.

Adding to 45090501 its reverse (10509054), we get a palindrome (55599555).

It can be divided in two parts, 450 and 90501, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 45090501 in words is "forty-five million, ninety thousand, five hundred one".