245138667 has 8 divisors (see below), whose sum is σ = 326945424. Its totient is φ = 163378848.

The previous prime is 245138651. The next prime is 245138671. The reversal of 245138667 is 766831542.

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

It is not a de Polignac number, because 245138667 - 2⁴ = 245138651 is a prime.

It is a super-4 number, since 4×245138667⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (245138567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3153 + ... + 22365.

It is an arithmetic number, because the mean of its divisors is an integer number (40868178).

Almost surely, 2^245138667 is an apocalyptic number.

245138667 is a deficient number, since it is larger than the sum of its proper divisors (81806757).

245138667 is a wasteful number, since it uses less digits than its factorization.

245138667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23469.

The product of its digits is 241920, while the sum is 42.

The square root of 245138667 is about 15656.9047707393. The cubic root of 245138667 is about 625.8505046087.

The spelling of 245138667 in words is "two hundred forty-five million, one hundred thirty-eight thousand, six hundred sixty-seven".