1254035042 has 16 divisors (see below), whose sum is σ = 2027282040. Its totient is φ = 578347392.

The previous prime is 1254035021. The next prime is 1254035051. The reversal of 1254035042 is 2405304521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 947469961 + 306565081 = 30781^2 + 17509^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 18134 + ... + 53262.

Almost surely, 2^1254035042 is an apocalyptic number.

1254035042 is a deficient number, since it is larger than the sum of its proper divisors (773246998).

1254035042 is a wasteful number, since it uses less digits than its factorization.

1254035042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36517.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1254035042 is about 35412.3571934996. The cubic root of 1254035042 is about 1078.3751979735.

Adding to 1254035042 its reverse (2405304521), we get a palindrome (3659339563).

The spelling of 1254035042 in words is "one billion, two hundred fifty-four million, thirty-five thousand, forty-two".