245380149 has 12 divisors (see below), whose sum is σ = 405072096. Its totient is φ = 140217192.

The previous prime is 245380133. The next prime is 245380151. The reversal of 245380149 is 941083542.

It is not a de Polignac number, because 245380149 - 2⁴ = 245380133 is a prime.

It is a super-2 number, since 2×245380149² = 120422835046524402, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245380249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1947399 + ... + 1947524.

It is an arithmetic number, because the mean of its divisors is an integer number (33756008).

Almost surely, 2^245380149 is an apocalyptic number.

It is an amenable number.

245380149 is a deficient number, since it is larger than the sum of its proper divisors (159691947).

245380149 is a wasteful number, since it uses less digits than its factorization.

245380149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894936 (or 3894933 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 245380149 is about 15664.6145499977. The cubic root of 245380149 is about 626.0559421199.

The spelling of 245380149 in words is "two hundred forty-five million, three hundred eighty thousand, one hundred forty-nine".