45145903 has 8 divisors (see below), whose sum is σ = 49317840. Its totient is φ = 40985280.

The previous prime is 45145861. The next prime is 45145913. The reversal of 45145903 is 30954154.

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

It is a cyclic number.

It is not a de Polignac number, because 45145903 - 2¹⁷ = 45014831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45145913) 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, 7033 + ... + 11821.

It is an arithmetic number, because the mean of its divisors is an integer number (6164730).

Almost surely, 2^45145903 is an apocalyptic number.

45145903 is a deficient number, since it is larger than the sum of its proper divisors (4171937).

45145903 is a wasteful number, since it uses less digits than its factorization.

45145903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 45145903 is about 6719.0700993515. The cubic root of 45145903 is about 356.0733315880.

It can be divided in two parts, 45145 and 903, that multiplied together give a triangular number (40765935 = T₉₀₂₉).

The spelling of 45145903 in words is "forty-five million, one hundred forty-five thousand, nine hundred three".