142154557 has 2 divisors, whose sum is σ = 142154558. Its totient is φ = 142154556.

The previous prime is 142154543. The next prime is 142154569. The reversal of 142154557 is 755451241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75012921 + 67141636 = 8661^2 + 8194^2 .

It is a cyclic number.

It is not a de Polignac number, because 142154557 - 2²³ = 133765949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142154587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71077278 + 71077279.

It is an arithmetic number, because the mean of its divisors is an integer number (71077279).

Almost surely, 2^142154557 is an apocalyptic number.

It is an amenable number.

142154557 is a deficient number, since it is larger than the sum of its proper divisors (1).

142154557 is an equidigital number, since it uses as much as digits as its factorization.

142154557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 34.

The square root of 142154557 is about 11922.8585917975. The cubic root of 142154557 is about 521.8995576525.

The spelling of 142154557 in words is "one hundred forty-two million, one hundred fifty-four thousand, five hundred fifty-seven".