1292440923148 has 6 divisors (see below), whose sum is σ = 2261771615516. Its totient is φ = 646220461572.

The previous prime is 1292440923127. The next prime is 1292440923149. The reversal of 1292440923148 is 8413290442921.

It is not an unprimeable number, because it can be changed into a prime (1292440923149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161555115390 + ... + 161555115397.

Almost surely, 2^{1292440923148} is an apocalyptic number.

It is an amenable number.

1292440923148 is a deficient number, since it is larger than the sum of its proper divisors (969330692368).

1292440923148 is a wasteful number, since it uses less digits than its factorization.

1292440923148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323110230791 (or 323110230789 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 1292440923148 in words is "one trillion, two hundred ninety-two billion, four hundred forty million, nine hundred twenty-three thousand, one hundred forty-eight".