154849967 has 2 divisors, whose sum is σ = 154849968. Its totient is φ = 154849966.

The previous prime is 154849951. The next prime is 154849969. The reversal of 154849967 is 769948451.

It is a strong prime.

It is an emirp because it is prime and its reverse (769948451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154849967 - 2⁴ = 154849951 is a prime.

Together with 154849969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154849969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77424983 + 77424984.

It is an arithmetic number, because the mean of its divisors is an integer number (77424984).

Almost surely, 2^154849967 is an apocalyptic number.

154849967 is a deficient number, since it is larger than the sum of its proper divisors (1).

154849967 is an equidigital number, since it uses as much as digits as its factorization.

154849967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 154849967 is about 12443.8726689082. The cubic root of 154849967 is about 536.9951612486.

It can be divided in two parts, 1548 and 49967, that added together give a palindrome (51515).

The spelling of 154849967 in words is "one hundred fifty-four million, eight hundred forty-nine thousand, nine hundred sixty-seven".