307381145 has 8 divisors (see below), whose sum is σ = 388271040. Its totient is φ = 232962480.

The previous prime is 307381117. The next prime is 307381181. The reversal of 307381145 is 541183703.

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

It is not a de Polignac number, because 307381145 - 2²⁶ = 240272281 is a prime.

It is a super-3 number, since 3×307381145³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1617701 + ... + 1617890.

It is an arithmetic number, because the mean of its divisors is an integer number (48533880).

Almost surely, 2^307381145 is an apocalyptic number.

It is an amenable number.

307381145 is a deficient number, since it is larger than the sum of its proper divisors (80889895).

307381145 is a wasteful number, since it uses less digits than its factorization.

307381145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235615.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 307381145 is about 17532.2886412470. The cubic root of 307381145 is about 674.8787308435.

The spelling of 307381145 in words is "three hundred seven million, three hundred eighty-one thousand, one hundred forty-five".