1254115142 has 8 divisors (see below), whose sum is σ = 2149911696. Its totient is φ = 537477912.

The previous prime is 1254115141. The next prime is 1254115171. The reversal of 1254115142 is 2415114521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254115141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44789813 + ... + 44789840.

It is an arithmetic number, because the mean of its divisors is an integer number (268738962).

Almost surely, 2^1254115142 is an apocalyptic number.

1254115142 is a deficient number, since it is larger than the sum of its proper divisors (895796554).

1254115142 is an equidigital number, since it uses as much as digits as its factorization.

1254115142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89579662.

The product of its digits is 1600, while the sum is 26.

The square root of 1254115142 is about 35413.4881365843. The cubic root of 1254115142 is about 1078.3981574633.

Adding to 1254115142 its reverse (2415114521), we get a palindrome (3669229663).

The spelling of 1254115142 in words is "one billion, two hundred fifty-four million, one hundred fifteen thousand, one hundred forty-two".