45203709 has 16 divisors (see below), whose sum is σ = 61286400. Its totient is φ = 29632176.

The previous prime is 45203693. The next prime is 45203737. The reversal of 45203709 is 90730254.

It is not a de Polignac number, because 45203709 - 2⁴ = 45203693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45203749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94132 + ... + 94610.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 2^45203709 is an apocalyptic number.

It is an amenable number.

45203709 is a deficient number, since it is larger than the sum of its proper divisors (16082691).

45203709 is a wasteful number, since it uses less digits than its factorization.

45203709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 45203709 is about 6723.3703601691. The cubic root of 45203709 is about 356.2252419852.

The spelling of 45203709 in words is "forty-five million, two hundred three thousand, seven hundred nine".