142266551 has 6 divisors (see below), whose sum is σ = 165493800. Its totient is φ = 121942716.

The previous prime is 142266529. The next prime is 142266559. The reversal of 142266551 is 155662241.

It is not a de Polignac number, because 142266551 - 2¹⁴ = 142250167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142266559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1451651 + ... + 1451748.

It is an arithmetic number, because the mean of its divisors is an integer number (27582300).

Almost surely, 2^142266551 is an apocalyptic number.

142266551 is a deficient number, since it is larger than the sum of its proper divisors (23227249).

142266551 is an equidigital number, since it uses as much as digits as its factorization.

142266551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903413 (or 2903406 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 142266551 is about 11927.5542757097. The cubic root of 142266551 is about 522.0365781779.

The spelling of 142266551 in words is "one hundred forty-two million, two hundred sixty-six thousand, five hundred fifty-one".