142451553 has 4 divisors (see below), whose sum is σ = 189935408. Its totient is φ = 94967700.

The previous prime is 142451539. The next prime is 142451557. The reversal of 142451553 is 355154241.

142451553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 142451553 - 2⁴ = 142451537 is a prime.

It is a super-2 number, since 2×142451553² = 40584889904223618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142451553.

It is not an unprimeable number, because it can be changed into a prime (142451557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23741923 + ... + 23741928.

It is an arithmetic number, because the mean of its divisors is an integer number (47483852).

Almost surely, 2^142451553 is an apocalyptic number.

It is an amenable number.

142451553 is a deficient number, since it is larger than the sum of its proper divisors (47483855).

142451553 is an equidigital number, since it uses as much as digits as its factorization.

142451553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47483854.

The product of its digits is 12000, while the sum is 30.

The square root of 142451553 is about 11935.3069922813. The cubic root of 142451553 is about 522.2627638780.

The spelling of 142451553 in words is "one hundred forty-two million, four hundred fifty-one thousand, five hundred fifty-three".