1251651082 has 16 divisors (see below), whose sum is σ = 2055780000. Its totient is φ = 566814640.

The previous prime is 1251651073. The next prime is 1251651101. The reversal of 1251651082 is 2801561521.

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, 99832 + ... + 111667.

It is an arithmetic number, because the mean of its divisors is an integer number (128486250).

Almost surely, 2^1251651082 is an apocalyptic number.

1251651082 is a deficient number, since it is larger than the sum of its proper divisors (804128918).

1251651082 is a wasteful number, since it uses less digits than its factorization.

1251651082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211781.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 1251651082 is about 35378.6811794900. The cubic root of 1251651082 is about 1077.6914227911.

The spelling of 1251651082 in words is "one billion, two hundred fifty-one million, six hundred fifty-one thousand, eighty-two".