1242075544 has 32 divisors (see below), whose sum is σ = 2346300000. Its totient is φ = 616412160.

The previous prime is 1242075521. The next prime is 1242075553. The reversal of 1242075544 is 4455702421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993832 + ... + 995080.

It is an arithmetic number, because the mean of its divisors is an integer number (73321875).

Almost surely, 2^1242075544 is an apocalyptic number.

It is an amenable number.

1242075544 is a deficient number, since it is larger than the sum of its proper divisors (1104224456).

1242075544 is a wasteful number, since it uses less digits than its factorization.

1242075544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083 (or 2079 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 34.

The square root of 1242075544 is about 35243.0921458376. The cubic root of 1242075544 is about 1074.9361545641.

Adding to 1242075544 its reverse (4455702421), we get a palindrome (5697777965).

The spelling of 1242075544 in words is "one billion, two hundred forty-two million, seventy-five thousand, five hundred forty-four".