1264432142 has 4 divisors (see below), whose sum is σ = 1896648216. Its totient is φ = 632216070.

The previous prime is 1264432133. The next prime is 1264432187. The reversal of 1264432142 is 2412344621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2412344621 = 14591 ⋅165331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316108034 + ... + 316108037.

It is an arithmetic number, because the mean of its divisors is an integer number (474162054).

Almost surely, 2^1264432142 is an apocalyptic number.

1264432142 is a deficient number, since it is larger than the sum of its proper divisors (632216074).

1264432142 is an equidigital number, since it uses as much as digits as its factorization.

1264432142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632216073.

The product of its digits is 9216, while the sum is 29.

The square root of 1264432142 is about 35558.8546215988. The cubic root of 1264432142 is about 1081.3472390212.

Adding to 1264432142 its reverse (2412344621), we get a palindrome (3676776763).

The spelling of 1264432142 in words is "one billion, two hundred sixty-four million, four hundred thirty-two thousand, one hundred forty-two".