245392149 has 4 divisors (see below), whose sum is σ = 327189536. Its totient is φ = 163594764.

The previous prime is 245392141. The next prime is 245392153. The reversal of 245392149 is 941293542.

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.

It is not a de Polignac number, because 245392149 - 2³ = 245392141 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 (245392141) 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, 40898689 + ... + 40898694.

It is an arithmetic number, because the mean of its divisors is an integer number (81797384).

Almost surely, 2^245392149 is an apocalyptic number.

It is an amenable number.

245392149 is a deficient number, since it is larger than the sum of its proper divisors (81797387).

245392149 is an equidigital number, since it uses as much as digits as its factorization.

245392149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81797386.

The product of its digits is 77760, while the sum is 39.

The square root of 245392149 is about 15664.9975742098. The cubic root of 245392149 is about 626.0661474400.

The spelling of 245392149 in words is "two hundred forty-five million, three hundred ninety-two thousand, one hundred forty-nine".