1552444142 has 4 divisors (see below), whose sum is σ = 2328666216. Its totient is φ = 776222070.

The previous prime is 1552444141. The next prime is 1552444171. The reversal of 1552444142 is 2414442551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2414442551 = 2207 ⋅1093993.

It is a junction number, because it is equal to n+sod(n) for n = 1552444099 and 1552444108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552444141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388111034 + ... + 388111037.

It is an arithmetic number, because the mean of its divisors is an integer number (582166554).

Almost surely, 2^1552444142 is an apocalyptic number.

1552444142 is a deficient number, since it is larger than the sum of its proper divisors (776222074).

1552444142 is an equidigital number, since it uses as much as digits as its factorization.

1552444142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776222073.

The product of its digits is 25600, while the sum is 32.

The square root of 1552444142 is about 39401.0677774093. The cubic root of 1552444142 is about 1157.9025071966.

Adding to 1552444142 its reverse (2414442551), we get a palindrome (3966886693).

The spelling of 1552444142 in words is "one billion, five hundred fifty-two million, four hundred forty-four thousand, one hundred forty-two".