45487147 has 2 divisors, whose sum is σ = 45487148. Its totient is φ = 45487146.

The previous prime is 45487129. The next prime is 45487153. The reversal of 45487147 is 74178454.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45487147 is a prime.

It is a super-3 number, since 3×45487147³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is equal to p_2745967 and since 45487147 and 2745967 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (45487187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22743573 + 22743574.

It is an arithmetic number, because the mean of its divisors is an integer number (22743574).

Almost surely, 2^45487147 is an apocalyptic number.

45487147 is a deficient number, since it is larger than the sum of its proper divisors (1).

45487147 is an equidigital number, since it uses as much as digits as its factorization.

45487147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125440, while the sum is 40.

The square root of 45487147 is about 6744.4159865773. The cubic root of 45487147 is about 356.9682302177.

The spelling of 45487147 in words is "forty-five million, four hundred eighty-seven thousand, one hundred forty-seven".