154543061 has 2 divisors, whose sum is σ = 154543062. Its totient is φ = 154543060.

The previous prime is 154543057. The next prime is 154543069. The reversal of 154543061 is 160345451.

It is a happy number.

154543061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146870161 + 7672900 = 12119^2 + 2770^2 .

It is a cyclic number.

It is not a de Polignac number, because 154543061 - 2² = 154543057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154543069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77271530 + 77271531.

It is an arithmetic number, because the mean of its divisors is an integer number (77271531).

Almost surely, 2^154543061 is an apocalyptic number.

It is an amenable number.

154543061 is a deficient number, since it is larger than the sum of its proper divisors (1).

154543061 is an equidigital number, since it uses as much as digits as its factorization.

154543061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 154543061 is about 12431.5349414302. The cubic root of 154543061 is about 536.6401594785.

The spelling of 154543061 in words is "one hundred fifty-four million, five hundred forty-three thousand, sixty-one".