1142567405 has 16 divisors (see below), whose sum is σ = 1603392384. Its totient is φ = 765253440.

The previous prime is 1142567383. The next prime is 1142567411. The reversal of 1142567405 is 5047652411.

It is not a de Polignac number, because 1142567405 - 2²⁴ = 1125790189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378086 + ... + 381095.

It is an arithmetic number, because the mean of its divisors is an integer number (100212024).

Almost surely, 2^1142567405 is an apocalyptic number.

It is an amenable number.

1142567405 is a deficient number, since it is larger than the sum of its proper divisors (460824979).

1142567405 is an equidigital number, since it uses as much as digits as its factorization.

1142567405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759236.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 1142567405 is about 33801.8846368069. The cubic root of 1142567405 is about 1045.4275563990.

The spelling of 1142567405 in words is "one billion, one hundred forty-two million, five hundred sixty-seven thousand, four hundred five".