142031550 has 24 divisors (see below), whose sum is σ = 352238616. Its totient is φ = 37875040.

The previous prime is 142031543. The next prime is 142031551. The reversal of 142031550 is 55130241.

It is a super-2 number, since 2×142031550² = 40345922390805000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142031551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 473289 + ... + 473588.

It is an arithmetic number, because the mean of its divisors is an integer number (14676609).

Almost surely, 2^142031550 is an apocalyptic number.

142031550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142031550 is an abundant number, since it is smaller than the sum of its proper divisors (210207066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142031550 is a wasteful number, since it uses less digits than its factorization.

142031550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946892 (or 946887 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 142031550 is about 11917.6990228819. The cubic root of 142031550 is about 521.7489801733.

Adding to 142031550 its reverse (55130241), we get a palindrome (197161791).

It can be divided in two parts, 14203 and 1550, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 142031550 in words is "one hundred forty-two million, thirty-one thousand, five hundred fifty".