152420142 has 16 divisors (see below), whose sum is σ = 348388992. Its totient is φ = 43548600.

The previous prime is 152420141. The next prime is 152420161. The reversal of 152420142 is 241024251.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152420141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814484 + ... + 1814567.

It is an arithmetic number, because the mean of its divisors is an integer number (21774312).

Almost surely, 2^152420142 is an apocalyptic number.

152420142 is an abundant number, since it is smaller than the sum of its proper divisors (195968850).

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

152420142 is a wasteful number, since it uses less digits than its factorization.

152420142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629063.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 152420142 is about 12345.8552559148. The cubic root of 152420142 is about 534.1715912534.

Adding to 152420142 its reverse (241024251), we get a palindrome (393444393).

The spelling of 152420142 in words is "one hundred fifty-two million, four hundred twenty thousand, one hundred forty-two".