154661371 has 2 divisors, whose sum is σ = 154661372. Its totient is φ = 154661370.

The previous prime is 154661357. The next prime is 154661459. The reversal of 154661371 is 173166451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154661371 - 2⁹ = 154660859 is a prime.

It is not a weakly prime, because it can be changed into another prime (154661071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77330685 + 77330686.

It is an arithmetic number, because the mean of its divisors is an integer number (77330686).

Almost surely, 2^154661371 is an apocalyptic number.

154661371 is a deficient number, since it is larger than the sum of its proper divisors (1).

154661371 is an equidigital number, since it uses as much as digits as its factorization.

154661371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 154661371 is about 12436.2924941479. The cubic root of 154661371 is about 536.7770656634. Note that the first 3 decimals are identical.

The spelling of 154661371 in words is "one hundred fifty-four million, six hundred sixty-one thousand, three hundred seventy-one".