1292812542 has 32 divisors (see below), whose sum is σ = 3283334400. Its totient is φ = 369374904.

The previous prime is 1292812537. The next prime is 1292812559. The reversal of 1292812542 is 2452182921.

1292812542 is a `hidden beast` number, since 12 + 92 + 8 + 12 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1292812497 and 1292812506.

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, 1709692 + ... + 1710447.

It is an arithmetic number, because the mean of its divisors is an integer number (102604200).

Almost surely, 2^1292812542 is an apocalyptic number.

1292812542 is an abundant number, since it is smaller than the sum of its proper divisors (1990521858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1292812542 is a wasteful number, since it uses less digits than its factorization.

1292812542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420157 (or 3420151 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 1292812542 is about 35955.7024962662. The cubic root of 1292812542 is about 1089.3777954431.

The spelling of 1292812542 in words is "one billion, two hundred ninety-two million, eight hundred twelve thousand, five hundred forty-two".