307225473 has 4 divisors (see below), whose sum is σ = 409633968. Its totient is φ = 204816980.

The previous prime is 307225447. The next prime is 307225493. The reversal of 307225473 is 374522703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 374522703 = 3 ⋅124840901.

It is a cyclic number.

It is not a de Polignac number, because 307225473 - 2⁵ = 307225441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (307225403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51204243 + ... + 51204248.

It is an arithmetic number, because the mean of its divisors is an integer number (102408492).

Almost surely, 2^307225473 is an apocalyptic number.

It is an amenable number.

307225473 is a deficient number, since it is larger than the sum of its proper divisors (102408495).

307225473 is a wasteful number, since it uses less digits than its factorization.

307225473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102408494.

The product of its (nonzero) digits is 35280, while the sum is 33.

The square root of 307225473 is about 17527.8484988888. The cubic root of 307225473 is about 674.7647816915.

The spelling of 307225473 in words is "three hundred seven million, two hundred twenty-five thousand, four hundred seventy-three".