142123553 has 48 divisors (see below), whose sum is σ = 187736640. Its totient is φ = 105753600.

The previous prime is 142123547. The next prime is 142123559. The reversal of 142123553 is 355321241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142123547) and next prime (142123559).

It is not a de Polignac number, because 142123553 - 2⁸ = 142123297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142123559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 785123 + ... + 785303.

It is an arithmetic number, because the mean of its divisors is an integer number (3911180).

Almost surely, 2^142123553 is an apocalyptic number.

142123553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142123553 is a deficient number, since it is larger than the sum of its proper divisors (45613087).

142123553 is a wasteful number, since it uses less digits than its factorization.

142123553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 241 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 142123553 is about 11921.5583293460. The cubic root of 142123553 is about 521.8616126844.

Adding to 142123553 its reverse (355321241), we get a palindrome (497444794).

It can be divided in two parts, 14212 and 3553, that multiplied together give a square (50495236 = 7106²).

The spelling of 142123553 in words is "one hundred forty-two million, one hundred twenty-three thousand, five hundred fifty-three".