1142415421 has 8 divisors (see below), whose sum is σ = 1306995264. Its totient is φ = 978180000.

The previous prime is 1142415389. The next prime is 1142415467. The reversal of 1142415421 is 1245142411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1142415421 - 2⁵ = 1142415389 is a prime.

It is a super-2 number, since 2×1142415421² = 2610225988277214482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142412421) 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, 78955 + ... + 92296.

It is an arithmetic number, because the mean of its divisors is an integer number (163374408).

Almost surely, 2^1142415421 is an apocalyptic number.

It is an amenable number.

1142415421 is a deficient number, since it is larger than the sum of its proper divisors (164579843).

1142415421 is an equidigital number, since it uses as much as digits as its factorization.

1142415421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172211.

The product of its digits is 1280, while the sum is 25.

The square root of 1142415421 is about 33799.6364033698. The cubic root of 1142415421 is about 1045.3812001821.

Adding to 1142415421 its reverse (1245142411), we get a palindrome (2387557832).

The spelling of 1142415421 in words is "one billion, one hundred forty-two million, four hundred fifteen thousand, four hundred twenty-one".