154262987 has 2 divisors, whose sum is σ = 154262988. Its totient is φ = 154262986.

The previous prime is 154262971. The next prime is 154263023. The reversal of 154262987 is 789262451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154262987 - 2⁴ = 154262971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (154202987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77131493 + 77131494.

It is an arithmetic number, because the mean of its divisors is an integer number (77131494).

Almost surely, 2^154262987 is an apocalyptic number.

154262987 is a deficient number, since it is larger than the sum of its proper divisors (1).

154262987 is an equidigital number, since it uses as much as digits as its factorization.

154262987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 154262987 is about 12420.2651743028. The cubic root of 154262987 is about 536.3157842078.

The spelling of 154262987 in words is "one hundred fifty-four million, two hundred sixty-two thousand, nine hundred eighty-seven".