1142461021 has 8 divisors (see below), whose sum is σ = 1231564320. Its totient is φ = 1053532272.

The previous prime is 1142460997. The next prime is 1142461027. The reversal of 1142461021 is 1201642411.

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

It is not a de Polignac number, because 1142461021 - 2⁹ = 1142460509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142460983 and 1142461001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142461027) 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, 29875 + ... + 56368.

It is an arithmetic number, because the mean of its divisors is an integer number (153945540).

Almost surely, 2^1142461021 is an apocalyptic number.

It is an amenable number.

1142461021 is a deficient number, since it is larger than the sum of its proper divisors (89103299).

1142461021 is a wasteful number, since it uses less digits than its factorization.

1142461021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87275.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1142461021 is about 33800.3109601080. The cubic root of 1142461021 is about 1045.3951089429.

The spelling of 1142461021 in words is "one billion, one hundred forty-two million, four hundred sixty-one thousand, twenty-one".