1142635603 has 16 divisors (see below), whose sum is σ = 1277945856. Its totient is φ = 1016507520.

The previous prime is 1142635597. The next prime is 1142635631. The reversal of 1142635603 is 3065362411.

It is a de Polignac number, because none of the positive numbers 2^k-1142635603 is a prime.

It is a super-2 number, since 2×1142635603² = 2611232242486347218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142635633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2551 + ... + 47872.

It is an arithmetic number, because the mean of its divisors is an integer number (79871616).

Almost surely, 2^1142635603 is an apocalyptic number.

1142635603 is a deficient number, since it is larger than the sum of its proper divisors (135310253).

1142635603 is a wasteful number, since it uses less digits than its factorization.

1142635603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50514.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1142635603 is about 33802.8934116593. The cubic root of 1142635603 is about 1045.4483559450.

The spelling of 1142635603 in words is "one billion, one hundred forty-two million, six hundred thirty-five thousand, six hundred three".