45147951 has 6 divisors (see below), whose sum is σ = 65213720. Its totient is φ = 30098628.

The previous prime is 45147923. The next prime is 45147959. The reversal of 45147951 is 15974154.

It is not a de Polignac number, because 45147951 - 2¹⁷ = 45016879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45147959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2508211 + ... + 2508228.

Almost surely, 2^45147951 is an apocalyptic number.

45147951 is a deficient number, since it is larger than the sum of its proper divisors (20065769).

45147951 is a wasteful number, since it uses less digits than its factorization.

45147951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016445 (or 5016442 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 45147951 is about 6719.2224996647. Note that the first 3 decimals coincide. The cubic root of 45147951 is about 356.0787158134.

The spelling of 45147951 in words is "forty-five million, one hundred forty-seven thousand, nine hundred fifty-one".