142415631 has 8 divisors (see below), whose sum is σ = 210986160. Its totient is φ = 94943736.

The previous prime is 142415617. The next prime is 142415639. The reversal of 142415631 is 136514241.

It is a happy number.

142415631 is a `hidden beast` number, since 1 + 4 + 24 + 1 + 5 + 631 = 666.

It is not a de Polignac number, because 142415631 - 2¹³ = 142407439 is a prime.

It is a super-2 number, since 2×142415631² = 40564423906256322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5274653 = 142415631 / (1 + 4 + 2 + 4 + 1 + 5 + 6 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 142415595 and 142415604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142415639) 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, 2637300 + ... + 2637353.

It is an arithmetic number, because the mean of its divisors is an integer number (26373270).

Almost surely, 2^142415631 is an apocalyptic number.

142415631 is a deficient number, since it is larger than the sum of its proper divisors (68570529).

142415631 is an equidigital number, since it uses as much as digits as its factorization.

142415631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274662 (or 5274656 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 142415631 is about 11933.8020345571. The cubic root of 142415631 is about 522.2188605303.

Adding to 142415631 its reverse (136514241), we get a palindrome (278929872).

The spelling of 142415631 in words is "one hundred forty-two million, four hundred fifteen thousand, six hundred thirty-one".