1242167132 has 6 divisors (see below), whose sum is σ = 2173792488. Its totient is φ = 621083564.

The previous prime is 1242167131. The next prime is 1242167137. The reversal of 1242167132 is 2317612421.

It is a super-2 number, since 2×1242167132² = 3085958367642210848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1242167095 and 1242167104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242167131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155270888 + ... + 155270895.

It is an arithmetic number, because the mean of its divisors is an integer number (362298748).

Almost surely, 2^1242167132 is an apocalyptic number.

It is an amenable number.

1242167132 is a deficient number, since it is larger than the sum of its proper divisors (931625356).

1242167132 is a wasteful number, since it uses less digits than its factorization.

1242167132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310541787 (or 310541785 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 1242167132 is about 35244.3914970879. The cubic root of 1242167132 is about 1074.9625750807.

Adding to 1242167132 its reverse (2317612421), we get a palindrome (3559779553).

The spelling of 1242167132 in words is "one billion, two hundred forty-two million, one hundred sixty-seven thousand, one hundred thirty-two".