142162553 has 16 divisors (see below), whose sum is σ = 158896080. Its totient is φ = 126287616.

The previous prime is 142162549. The next prime is 142162607. The reversal of 142162553 is 355261241.

It can be written as a sum of positive squares in 8 ways, for example, as 719104 + 141443449 = 848^2 + 11893^2 .

It is not a de Polignac number, because 142162553 - 2² = 142162549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142162253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209651 + ... + 210327.

It is an arithmetic number, because the mean of its divisors is an integer number (9931005).

Almost surely, 2^142162553 is an apocalyptic number.

142162553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142162553 is a deficient number, since it is larger than the sum of its proper divisors (16733527).

142162553 is a wasteful number, since it uses less digits than its factorization.

142162553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276.

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

The square root of 142162553 is about 11923.1939093516. The cubic root of 142162553 is about 521.9093428485.

The spelling of 142162553 in words is "one hundred forty-two million, one hundred sixty-two thousand, five hundred fifty-three".