1249141534 has 32 divisors (see below), whose sum is σ = 2014981920. Its totient is φ = 579583872.

The previous prime is 1249141519. The next prime is 1249141603. The reversal of 1249141534 is 4351419421.

It is a self number, because there is not a number n which added to its sum of digits gives 1249141534.

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, 174612 + ... + 181624.

It is an arithmetic number, because the mean of its divisors is an integer number (62968185).

Almost surely, 2^1249141534 is an apocalyptic number.

1249141534 is a deficient number, since it is larger than the sum of its proper divisors (765840386).

1249141534 is a wasteful number, since it uses less digits than its factorization.

1249141534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164.

The product of its digits is 17280, while the sum is 34.

The square root of 1249141534 is about 35343.1964315623. The cubic root of 1249141534 is about 1076.9706873506.

The spelling of 1249141534 in words is "one billion, two hundred forty-nine million, one hundred forty-one thousand, five hundred thirty-four".