45471451 has 4 divisors (see below), whose sum is σ = 46938304. Its totient is φ = 44004600.

The previous prime is 45471443. The next prime is 45471473. The reversal of 45471451 is 15417454.

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

It is a cyclic number.

It is not a de Polignac number, because 45471451 - 2³ = 45471443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1466821 = 45471451 / (4 + 5 + 4 + 7 + 1 + 4 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45471401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733380 + ... + 733441.

It is an arithmetic number, because the mean of its divisors is an integer number (11734576).

Almost surely, 2^45471451 is an apocalyptic number.

45471451 is a deficient number, since it is larger than the sum of its proper divisors (1466853).

45471451 is a wasteful number, since it uses less digits than its factorization.

45471451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466852.

The product of its digits is 11200, while the sum is 31.

The square root of 45471451 is about 6743.2522568861. The cubic root of 45471451 is about 356.9271664719.

The spelling of 45471451 in words is "forty-five million, four hundred seventy-one thousand, four hundred fifty-one".